Quiz #7

Open Notes, Open Neighbor

On a piece of paper put your Name, Student ID Number and Answer to:

Complete and balance the following reaction:

HMnO4–(aq) → MnO4–(aq) + MnO2(s)

Answer

Oxidation: HMnO4–(aq) → MnO4–(aq) + H+(aq) + e–

Reduction: HMnO4–(aq) + 3 H+(aq) + 2 e– → MnO2(s) + 2 H2O(l)

Net: 3 HMnO4–(aq) + H+(aq) → 2 MnO4–(aq) + MnO2(s) + 2 H2O(l)