Balance the following half-reaction occurring in a basic solution. MnO₂(s)→ Mn(OH)₂(s) A) MnO₂(s)+ 2 H₂O(l)+ 2e−→ Mn(OH)₂(s)+ 2 OH−(aq) B) MnO₂(s)+ 2 H₂O(l)+ 4e−→ Mn(OH)₂(s)+ (OH)₂−(aq) C) MnO₂(s)+ H₂²⁺(aq)+ 2e−→ Mn(OH)₂(s) D) MnO₂(s)+ H₂(g)→ Mn(OH)₂(s)+ 2 e− E) MnO₂(s)+ 2 H₂O(l)→ Mn(OH)₂(s)+ 2 OH−(aq)

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Quizplus · Accepted Answer

The correct choice is A because it properly balances the half-reaction in a basic solution by adding water (H₂O) to balance the oxygen atoms and adding hydroxide ions (OH⁻) to both sides to balance the hydrogen atoms, while also incorporating the necessary electrons to balance the charge.

Balance the Following Half-Reaction Occurring in a Basic Solution