which 2 of these half reactions describe HgO(l) + Zn(s) → ZnO(s) + Hg(l)?
these are my options:
I. Zn → Zn2+ + 2e−
II. Hg2+ → Hg + 2e−
III. Zn + 2e− → Zn2+
IV. Hg2+ + 2e− → Hg
two of these are the correct answer, but which
Update:Edit: So the answer is I and IV. But which one oxidizes, and which is the reduction?
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I. Zn → Zn2+ + 2e−
IV. Hg2+ + 2e− → Hg
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One of them is the first one, lemme edit in a sec.\
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The other is number 4.
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The first one is the oxidization. The other one is the reduction.
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