试题与答案

(4分)近年来有人提出了利用海水(含氯化钠)处理含二氧化硫的废气,该方法的流程如

题型:选择题

题目:

(4分)近年来有人提出了利用海水(含氯化钠)处理含二氧化硫的废气,该方法的流程如下:

 

(1) 上图中从海水最终得到“NaCl(产品)”的过程属于              (填“物理变化”或“化学变化”)。

(2) 图中反应①、③、④属于化合反应的是                (填序号)。

(3) 反应①的化学方程式为                                                

(4) 反应④的化学方程式为                                                

答案:

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参考答案:B

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