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盐与盐反应的条件

更新时间: 2020-10-08 00:00:00     

1、反应物要溶于水;

2、生成物要难溶;

3、生成物中有沉淀;

4、 生成物难电解的(如水 );

5、生成物中含有气体。

盐与盐反应是复分解反应,发生反应的盐都是可溶性盐。此时盐1的阴,阳离子和盐2的阴、阳离子交换结合,但其发生反应的条件是要生成沉淀、气体和水之一或更多。

关键词: 反应 条件

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