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第36讲 电解池 金属的腐蚀与防护
【复习目标】 1.理解电解池的构成、工作原理，能书写电极反应式和总反应方程式。2.掌握氯碱工业、电解精炼、电镀、电冶金等的反应原理。3.了解金属发生电化学腐蚀的原因、金属腐蚀的危害以及防止金属腐蚀的措施。
考点一 电解池及工作原理
1.电解和电解池
(1)电解：使电流通过电解质溶液(或熔融电解质)而在阴、阳两极引起氧化还原反应的过程。
(2)电解池：将电能转化为化学能的装置。
(3)电解池的构成：①有与电源相连的两个电极；②电解质溶液(或熔融电解质)；③形成闭合回路。
2.构建电解池模型(以电解CuCl2溶液为例)
