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26 March, 04:32

In the balanced redox reaction: 2 cu (s) + s (s) ? cu2s (s), how many electrons are gained or lost by each sulfur atom?

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  1. 26 March, 04:46
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    2Cu + S = Cu₂S

    S⁰ + 2e⁻ = S⁻²

    Cu⁰ - 1e⁻ = Cu⁺¹

    A sulfur atom gains two electrons.
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