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maw [93]
3 years ago
5

When an atom in a reactant gains electrons, what happens to its oxidation number?

Chemistry
2 answers:
Fittoniya [83]3 years ago
8 0
A)<span>.Its oxidation number decreases.</span>
Mice21 [21]3 years ago
7 0

Answer:

A

Explanation:

The oxidation number of an atom is related to the charge associated with it. When an atom gains electrons, it gains negative charge, so the oxidation number goes down.

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