</span></section><p data-pm-slice="0 0 []"><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p data-pm-slice="0 0 []"><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">過氧化物中都含過氧鍵（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">?</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">），其中每個氧原子上都有兩對孤電子對，使這兩個氧原子之間的斥力增加，共價鍵易斷開，所以含過氧鍵的物質(zhì)性質(zhì)活潑。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">下面節(jié)選該講座的一個片段。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">工業(yè)上以重晶石</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（主要成分為</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaSO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">4</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">為原料先制備</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">Ba(NO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">)</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">繼續(xù)制成</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">最后得到</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">溶液。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><br></span></span></p><p><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">1</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．制備</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">Ba(NO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">)</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><section nodeleaf=""><span class="wxart_image" wx-style="display:inline-block;width: 433px;height: auto !important;">
</span></section><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">1</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）途徑</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">1</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">的第一步反應為</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaSO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">4</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;"> + 4C = BaS + 4CO</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（條件：高溫）。結(jié)合下圖，</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">該反應的</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">Δ</span></span><i><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span></i></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">和</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">Δ</span></span><i><span leaf=""><span textstyle="" style="font-size: 16px;">S</span></span></i></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">判斷正確的是</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">______</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。</span></span></span></p><section nodeleaf=""><span class="wxart_image" wx-style="display:inline-block;width: 292px;height: auto !important;">
</span></section><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">A</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span></span><span lang="EN-US" style="font-family: "Cambria Math", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">△</span></span></span><i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span></span></i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">>0</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，</span></span></span><span lang="EN-US" style="font-family: "Cambria Math", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">△</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">S>0</span></span><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><o:p></o:p></span></p><p><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">B</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span></span><span lang="EN-US" style="font-family: "Cambria Math", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">△</span></span></span><i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span></span></i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"><0</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，</span></span></span><span lang="EN-US" style="font-family: "Cambria Math", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">△</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">S>0</span></span><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><o:p></o:p></span></p><p><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">C</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span></span><span lang="EN-US" style="font-family: "Cambria Math", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">△</span></span></span><i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span></span></i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">>0</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，</span></span></span><span lang="EN-US" style="font-family: "Cambria Math", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">△</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">S<0</span></span><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><o:p></o:p></span></p><p><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">D</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span></span><span lang="EN-US" style="font-family: "Cambria Math", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">△</span></span></span><i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span></span></i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"><0</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，</span></span></span><span lang="EN-US" style="font-family: "Cambria Math", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">△</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">S<0</span></span><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaS</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">可溶于水。在用硝酸溶解</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaS</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">時，可能產(chǎn)生的污染性氣體有</span></span></span><u><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span></u><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">、</span></span></span><u><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span></u><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">298K</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">時，</span></span></span><i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">K</span></span></span></i><sub><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">sp</span></span></span></sub><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">(BaCO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">) = 5.1×10</span></span></span><sup><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">?</span></span></span></sup><sup><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">9</span></span></span></sup><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，</span></span></span><i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">K</span></span></span></i><sub><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">sp</span></span></span></sub><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">(BaSO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">4</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">) =1.1×10</span></span></span><sup><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">?</span></span></span></sup><sup><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">10</span></span></span></sup><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。計算途徑</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">中</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaSO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">4</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">轉(zhuǎn)化為</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaCO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">的平衡常數(shù)</span></span></span><i><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">K</span></span></span></i><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">4</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）綜合以上的分析，設計以重晶石為原料制備</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">Ba(NO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">)</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">的物質(zhì)轉(zhuǎn)化路線。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">答案：</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">1</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">A</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">S</span></span><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span leaf=""><span textstyle="" style="font-size: 16px;">NO</span></span><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">2.16</span></span><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span></p><section nodeleaf=""><span class="wxart_image" wx-style="display:inline-block;width: 501px;height: auto !important;">
</span></section><p><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><br></span><o:p></o:p></span></p><p><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．由</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">Ba(NO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">)</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">制</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，流程如下：</span></span></span></p><section nodeleaf=""><span class="wxart_image" wx-style="display:inline-block;width: 253px;height: auto !important;">
</span></section><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">已知</span></span><span leaf=""><span textstyle="" style="font-size: 16px;">硝酸鋇</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">600℃</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">時熱解可得到</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaO</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">1</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）步驟</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">I</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">中觀察到有紅棕色氣體產(chǎn)生，寫出相應的化學方程式。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）在硬質(zhì)試管中加熱硝酸鋇晶體使之分解，再把帶火星的木條插入其中，木條復燃。該現(xiàn)象</span></span><span leaf=""><span textstyle="" style="font-size: 16px;">能否證明</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">NO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">對木條復燃助燃的作用</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">？說出你的理由。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）為提高步驟</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">Ⅱ</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">的反應轉(zhuǎn)化率，可采取的措施有哪些</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">?</span></span><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">答案：</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">1</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">2Ba(NO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">)</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;"> = 2BaO +4NO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">↑ + O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">↑</span></span><span style="font-family: 宋體;"><span leaf="" data-pm-slice="1 1 [" para",{"tagname":"p","attributes":{"style":"margin-bottom:="" 0px;"},"namespaceuri":"http:="" www.w3.org="" 1999="" xhtml"},"node",{"tagname":"span","attributes":{"style":"font-family:="" 宋體;"},"namespaceuri":"http:="" xhtml"}]"=""><span textstyle="" style="font-size: 16px;">（條件：</span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf="" data-pm-slice="1 1 [" para",{"tagname":"p","attributes":{"style":"margin-bottom:="" 0px;"},"namespaceuri":"http:="" www.w3.org="" 1999="" xhtml"},"node",{"tagname":"span","attributes":{"lang":"en-us","style":"font-family:="" \"times="" new="" roman\",="" serif;"},"namespaceuri":"http:="" xhtml"}]"=""><span textstyle="" style="font-size: 16px;">600℃）</span></span></span></span><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span><span leaf=""><span textstyle="" style="font-size: 16px;">能證明</span></span></span><span style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">在反應生成的混合氣體中，</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">約占</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">1/5</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">，與</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">在空氣中的含量基本一致，帶火星的木條在空氣中不能復燃，而在該混合氣體中復燃，可知</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">NO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">有助燃作用。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">）加壓，降溫，增大</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">濃度</span></span></span><span style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span lang="EN-US"><o:p></o:p></span></span></p><p><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><br></span></span></p><p><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．由</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">制</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">有多種方法。用過氧化鋇和稀硫酸反應制得</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，反應的化學方程式為：</span></span></span><u><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span></u><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。過濾除去沉淀后，</span></span></span><u><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span></u><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（填</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">“</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">減壓蒸餾</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">”</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">或</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">“</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">常壓蒸餾</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">”</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）除去過量的水，即可得到一定濃度的</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">答案：</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">BaO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;"> + H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">SO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">4</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;"> = BaSO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">4</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">+ H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">減壓蒸餾</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><o:p></o:p></span></p><p><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><br></span></span></p><p><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">4</span></span></span><span leaf=""><span textstyle="" style="font-size: 16px;">．為貯存、運輸、使用的方便，工業(yè)上常將</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span leaf=""><span textstyle="" style="font-size: 16px;">轉(zhuǎn)化為其他比較穩(wěn)定的物質(zhì)。</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><o:p></o:p></span></p><p><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">1</span></span></span><span leaf=""><span textstyle="" style="font-size: 16px;">）固態(tài)的過碳酸鈉晶體（其化學式為</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">2Na</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">CO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">·3H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span leaf=""><span textstyle="" style="font-size: 16px;">）具有</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">Na</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">CO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub></span><span leaf=""><span textstyle="" style="font-size: 16px;">和</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span leaf=""><span textstyle="" style="font-size: 16px;">的雙重性質(zhì)。下列物質(zhì)不會使過碳酸鈉晶體失效的是</span><span textstyle="" style="font-size: 16px; text-decoration-line: underline;"> </span><span textstyle="" style="font-size: 16px;">.</span></span></p><p><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">A</span></span></span><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">MnO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span leaf=""><span textstyle="" style="font-size: 16px;">B</span></span></span><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">S</span></span><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span leaf=""><br></span></span></p><p><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">C</span></span></span><span leaf=""><span textstyle="" style="font-size: 16px;">．稀鹽酸</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span leaf=""><span textstyle="" style="font-size: 16px;">D</span></span></span><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span><span lang="EN-US" style="font-family:"Times New Roman",serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">NaHCO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）過氧化尿素</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> [</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">CO(NH</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">)</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">·H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">]</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">是一種無毒無味的白色粉末</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，其分子內(nèi)存在的作用力是</span></span></span><u><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span></u><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。（雙選）</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">A</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">共價鍵</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span leaf=""><span textstyle="" style="font-size: 16px;">B</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">離子鍵</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span leaf=""><br></span></span></p><p><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">C</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">金屬鍵</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span leaf=""><span textstyle="" style="font-size: 16px;">D</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">．</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">氫鍵</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="PT-BR" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">工業(yè)上可把</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">轉(zhuǎn)化為過二硫酸鉀。已知：</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">中的</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">原子被磺酸基（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf="" data-pm-slice="1 1 [" para",{"tagname":"p","attributes":{"style":"margin-bottom:="" 0px;","data-pm-slice":"0="" 0="" []"},"namespaceuri":"http:="" www.w3.org="" 1999="" xhtml"},"node",{"tagname":"span","attributes":{"lang":"en-us","style":"font-family:="" \"times="" new="" roman\",="" serif;"},"namespaceuri":"http:="" xhtml"}]"=""><span textstyle="" style="font-size: 16px;">?SO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">H）</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">取代可生成過硫酸</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">，</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">若一個</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">原子被取代，生成的是過一硫酸，分子式為</span></span></span><u><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span></u><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">；若二個</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span></span><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">原子被取代，生成的是過二硫酸，則過二硫酸鉀的化學式為</span></span></span><u><span lang="EN-US" style="font-family: "Times New Roman", serif;"><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span></span></u><span style="font-family: 宋體;"><span leaf=""><span textstyle="" style="font-size: 16px;">。</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;"><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">答案：（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">1</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">D</span></span><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">AD</span></span><o:p></o:p></span></p><p><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">（</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">3</span></span></span><span style="font-family: 宋體;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">）</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: red;"><span leaf=""><span textstyle="" style="font-size: 16px;">H</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">SO</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">5</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;"> </span></span><span leaf=""><span textstyle="" style="font-size: 16px;">K</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">S</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">2</span></span></sub><span leaf=""><span textstyle="" style="font-size: 16px;">O</span></span><sub><span leaf=""><span textstyle="" style="font-size: 16px;">8</span></span></sub><o:p></o:p></span></p><p><span style="font-family: 宋體;color: rgb(0, 112, 192);"><span leaf=""><br></span></span></p><p><span style="font-family: 宋體;color: rgb(0, 112, 192);"><span leaf=""><span textstyle="" style="font-size: 16px;">《范汝廣說化學》：</span></span></span><span lang="EN-US" style="font-family: "Times New Roman", serif;color: rgb(0, 112, 192);"><span leaf=""><span textstyle="" style="font-size: 16px;">18101846096</span></span></span><span style="font-family: 宋體;color: rgb(0, 112, 192);"><span leaf=""><span textstyle="" style="font-size: 16px;">（微信同號）</span></span></span></p><p style="display: none;"><mp-style-type data-value="3"></mp-style-type></p></div><p></p>
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主題式復習講座5——《過氧化物：從結(jié)構(gòu)到應用的深度探究》: 120352uqn3fjl9l3gtql4n.png