Practice question
Question
How many electrons are transferred in the balanced reaction 2MnO₄− + 6I− + 4H₂O → 2MnO₂ + 3I₂ + 8OH−?
Explanation
Oxidation: 6I− → 3I₂ + 6e−. Reduction: 2MnO₄− + 6e− → 2MnO₂. Total electrons = 6.
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