题目内容


 下列物质的用途主要利用其化学性质的是(     )

A. 石墨棒作干电池电极                B. 天然气用作燃料

C. 金刚石加工成钻石                  D. 铜用于制造导线

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现有A、B、C、D、E、F、G七种物质,C、F是最常见的金属,B密度最小的气体,D为浅绿色溶液,G为蓝色溶液,它们之间存在如下关系:

(12)                                                                                                                                                                                                                                                                写出下列物质的化学式:B __________、F __________。

(13)                                                                                                                                                                                                                                                                写出C→A发生的化学反应的方程式:

___________________________________________________________________。

(14)                                                                                                                                                                                                                                                                写出一种分别能与D、E、G溶液发生置换分解反应的物质的化学式___________。

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