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Vika [28.1K]
4 years ago
6

How to determine oxidation numbers

Chemistry
1 answer:
nadezda [96]4 years ago
7 0

Answer:

1. The oxidation number of a free element is always 0.

2. The oxidation number of a monatomic ion equals the charge of the ion.

3. The oxidation number of H is +1, but it is -1 in when combined with less electronegative elements.

4. The oxidation number of O in compounds is usually -2, but it is -1 in peroxides.

Explanation:

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