Anode half-reaction Zn(s Zn2+(aq)+2e Cathode half-reaction Cu2+(ag)+2e- → Cu(s) Net reaction Zn(s)+Cu2+(aq)- Zn2+(aq)+Cu(s) Voltmeter v Anode w wire Cathode sAlt bridge An electrochemical cell 阳极 anode),负极,Zn,氧化, 化学电池 阴极 (cathode),正极,Cu2,还原化学电池 阳极(anode),负极，Zn, 氧化， 阴极(cathode), 正极，Cu2+ , 还原