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如何判断电解时的电解产物
更新时间: 2020-09-24 00:00:00  

1、判断电解时的产物关键是记住放电顺序,阳极为活泼金属时,则金属被氧化。

2、阳极为惰性电极时,阴离子放电顺序为碘离子,溴离子,氯离子,氢氧根离子,含氧酸根离子,产物分别为I2,Br2,Cl2,O2。

3、阴极本身不会参与电极反应,阳离子在阴极上放电顺序为金属活动性顺序表倒过来,如电解硫酸铜溶液阴极上铜离子放电得铜,电解NaCl溶液阴极上得氢气。

关键词: 如何 判断 电解 产物

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