Practice question
Question
In the reaction 2MnO₂ + 4KOH + O₂ → 2K₂MnO₄ + 2H₂O, how many electrons are transferred per Mn atom?
Explanation
Mn (+4 in MnO₂) becomes +6 in K₂MnO₄. Change = +6 - (+4) = 2 electrons per Mn.
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