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28 April, 21:50

An aqueous solution containing barium iodide (bai2) is electrolyzed in a cell containing inert electrodes. what are the products at the anode and cathode?

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  1. 28 April, 21:57
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    Answer is: hydrogen (cathode), iodine (anode).

    The balanced oxidation half reaction: 2I⁻ (aq) → I₂ (s) + 2e⁻.

    Iodine is oxidized (lost electrons) from - 1 to neutral charge (0).

    The balanced reduction half-reaction: 2H ₂O (l) + 2e⁻ → H₂ (g) + 2OH⁻.

    Hydrogen is reduced (gain electrons) from + 1 to neutral charge.
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