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What Is the Oxidation Number Change for the Manganese Atom

Question 53

Multiple Choice

What is the oxidation number change for the manganese atom in the following unbalanced reduction half-reaction:
Mn O4- (aq) + H+(aq) → Mn2+(aq) + H2O(l)


A) -7
B) -5
C) +5
D) +7

Correct Answer:

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