二、电池电动势(8)与电极电势(E) Sw itch Voltmeter Zn l No& Nat anode C N NO cathode Zn2+ NO NO. Cu2 zn(s)→>zn2+(a)+2e Ct2+(an)+2e→Cu(s) Cu-Zn Movement of cations 原电池 Movement of anions二、电池电动势()与电极电势() Cu-Zn 原电池