15问答网 > 请问Fe.Zn与3%Nacl溶液构成原电池发生的反应方程式

请问Fe.Zn与3%Nacl溶液构成原电池发生的反应方程式

2025-04-07 10:59:49
推荐回答（2个）
回答1：

Zn做负极，Fe做正极，发生吸氧腐蚀。
负极：Zn-2e-=Zn2+
正极：O2+4e- +2H2O=4OH-
总反应：2Zn+O2+2H2O=2Zn(OH)2

回答2：

负 Zn-2e+2OH-=Zn（OH）2,
正 O2+4e+2H2O=4OH-

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