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During electrolysis of aqueous copper(II) sulfate using inert electrodes, which balanced half-equation is correct for the anode?.
- A.Cu²⁺(aq) + 2e⁻ → Cu(s)
- B.2H₂O(l) + 2e⁻ → H₂(g) + 2OH⁻(aq)
- C.4OH⁻(aq) → O₂(g) + 2H₂O(l) + 4e⁻
- D.2SO₄²⁻(aq) → S₂O₈²⁻(aq) + 2e⁻
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