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Mathematics, 14.10.2019 23:40 janshnajdajdnnahjd

Which of the following reactions occurs at the anode in a voltaic cell? cu2+ (aq) + 2e– → cu (s)
cd2+ (aq) + zn (s) → zn2+ (aq) + cd (s)
k+ (aq) + e– → k (s)
mg (s) → mg2+ + 2e–

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Which of the following reactions occurs at the anode in a voltaic cell? cu2+ (aq) + 2e– → cu (s)

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