In a battery, the following two oxidation-reduction reactions are taking place: rxn A: Zn + 2 OH- ? ZnO + H2O + 2e- rxn B: 2 MnO2 + H2O + 2e- ? Mn2O3 + 2 OH-What is undergoing oxidation?

A. Zn
B. MnO2
C. ZnO
D. H2O
E. OH-

Answer: A

Environmental & Atmospheric Sciences

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