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 reduction?

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


C

Environmental & Atmospheric Sciences

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