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What Is the Oxidation Number Change for the Bromine Atom

Question 4

Multiple Choice

What is the oxidation number change for the bromine atom in the following unbalanced reduction half reaction?
Br O3- (aq) + H+(aq) → Br-(aq) + H2O(l)


A) -7
B) - 6
C) + 6
D) + 7

Correct Answer:

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