What is the change in oxidation number of manganes in the reaction represented by the following equation? MnO^-_4(aq) + 8H⁺_(aq) + 5e^- → Mn²⁺_(aq) + 4H₂O_(l)

A.

+3 to + 2

B.

+ 4 to + 2

C.

+ 5 to + 2

D.

+ 7 to 2

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Correct answer is D

No explanation has been provided for this answer.

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