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电解饱和食盐水化学方程式
更新时间: 2021-06-02 21:07:14  

1、正极:(2Cl-)-( 2e-=Cl2。

2、负极:2H2O +(2e-)=H2+(2OH-)。

3、总离子式:通电

2Cl-+2H2O= H2+Cl2+2OH。

4、总化学式:电解

2NaCl+2H2O=Cl2(气体)+H2(气体)+2NaOH。

关键词: 电解 饱和 食盐 化学 方程式

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