A galvanic cell has the overall reaction: 2Fe(NO3)2(aq)+Pb(NO3)2(aq)--->2Fe(NO3)3(aq)+Pb(s) which is the half reaction o

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A galvanic cell has the overall reaction:
2Fe(NO3)2(aq)+Pb(NO3)2(aq)--->2Fe(NO3)3(aq)+Pb(s)
which is the half reaction occurring at the cathode?
1) NO3-(aq)+4H+(aq)+3ē--->NO(g)+2H2O(l)
2) NO3-(aq)+2H+(aq)+ ē--->NO2(g)+H2O(l)
3) Fe^2+(aq)--->Fe^3+(aq)+ē
4) Pb^2+(aq)+2ē--->Pb(s)
5) Fe^2+(aq)+ē--->Fe^3+(aq)