(1)用锌片、铜片和稀盐酸组成的原电池,正极的电极反应式为____________________,负极的电极反应式为_

2025-04-01 00:30:26
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回答1:

(1)2H + +2e - =H 2 ↑;Zn-2e - =Zn 2+ ;Zn+2H + =Zn 2+ +H 2 ↑;2.24L;0.2;减弱
(2)① ;②正极:Cu 2+ +2e - =Cu;负极:Fe-2e - = Fe 2+ (答案合理即可)