Question

What is oxidation number writes its rules

Answer 1

Answer:

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Oxidation numbers are bookkeeping numbers. They allow chemists to do things such as balance redox (reduction/oxidation) equations. ... Rule 2: The oxidation number of a monatomic (one-atom) ion is the same as the charge on the ion, for example: Rule 3: The sum of all oxidation numbers in a neutral compound is zero.

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Answer 2

The convention is that the cation is written first in a formula, followed by the anion. ...

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

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

The usual oxidation number of hydrogen is +1. ...

The oxidation number of oxygen in compounds is usually -2.