同学,你的原电池是哪两种金属,用的电解液是什么?这些你都没说,还得加油啊,问得不得要领.
这个是最基本也最有名的原电池的例子:
伏打电池:(负极—Zn、正极—Cu、电解液—H2SO4)
负极:Zn–2e-==Zn2+ (氧化反应)
正极:2H++2e-==H2↑ (还原反应)
离子方程式 Zn + 2H+ == H2↑+ Zn2+
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