write out the two redox half-reactions (oxidation and reduction), and use half redox half-reactions to write the balanced net ionic equation of
Ag/Ag+ | | H+/H2
Cu/Cu2+ | | H+/H2
H2/H+ | | Zn2+/Zn
Cu/Cu2+ | | Zn2+/Zn
Ag/Ag+ | | Zn2+/Zn
Oxidatio half reaction
Ag ----> Ag+ + e-
Reduction Half reaction
2H+ + 2e- ----> H2
Net ionic equation
Ag + 2H+ ------> Ag+ + H2
Oxidatio half reaction
Cu ----> Cu2+ + 2e-
Reduction Half reaction
2H+ + 2e- ----> H2
Net ionic equation
Cu + 2H+ ------> Cu2+ + H2
Oxidatio half reaction
Zn ----> Zn2+ + 2e-
Reduction Half reaction
2H+ + 2e- ----> H2
Net ionic equation
2H+ + Zn ------> Zn2+ + H2
Oxidatio half reaction
Zn ----> Zn+2 + 2e-
Reduction Half reaction
Cu2+ + 2e- ----> Cu
Net ionic equation
Zn + Cu2+ ------> Zn2+ + Cu
Oxidatio half reaction
Zn ----> Zn+2 + 2e-
Reduction Half reaction
2Ag+ + 2e- ----> Ag
Net ionic equation
Zn + 2Ag+ ------> Zn2+ + Ag
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