In a fuel cell using H₂ and O₂, what is the anode reaction?

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O₂ + 2H₂O + 4e⁻ → 4OH⁻ H₂ + 2OH⁻ → 2H₂O + 2e⁻ Correct 2H₂O → O₂ + 4H⁺ + 4e⁻ H₂ → 2H⁺ + 2e⁻

Anode: H₂ + 2OH⁻ → 2H₂O + 2e⁻ in basic medium.

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