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CU2S(s) + O2(g) → 2CU

CU2S(s) + O2(g) → 2CU(s) + SO2(g)
What is the change in the oxidation number of copper in the reaction above?

A.

+1 to 0

B.

0 to +2

C.

+2 to +1

D.

0 to +1

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Correct answer is A

No explanation has been provided for this answer.

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