How do I determine what is reduced in this Redox????

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How do I determine what is reduced in this Redox????

What element(s) is/are reduced in the following redox reaction? Show your reasoning.

Cu(s) + H2SO4 (aq) → CuSO4 (aq) + H2(g)

Thanks so much for the help!!!

2007-11-06 13:21:59 · 3 answers · asked by CrimsonRider 1 in Science & Mathematics ➔ Chemistry

3 answers

By elimination, if Cu(s) with oxidation state of 0 is oxidized to Cu+2 (has to agree with magnitude of SO4=), there isn't much left. H+1 is reduced to elemental H with oxidation state of 0.

2007-11-06 13:29:39 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋

Apply oxidation numbers

Find the element that decreases in Ox #

Note free elements are 0
H in a compound is +1

2007-11-06 21:29:37 · answer #2 · answered by kentchemistry.com 7 · 0⤊ 0⤋

2H+. It gained 2 electrons.

2007-11-06 21:29:20 · answer #3 · answered by ako 1 · 0⤊ 0⤋