Laborn107id
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Which change in oxidation number indicates oxidation?
(1) –1 to +2 (3) +2 to –3
(2) –1 to –2 (4) +3 to +2

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IwAsSoMeGuYid
Oxidation is the loss of electrons (OILRIG, oxidation is loss, reduction is gain), so that would mean a gain in charge (Well from negative to positive). The only one to show charge going up is (1)
Pstnonsonjokuid

The change that shows an oxidation is the change  –1 to +2.

What is oxidation?

The term oxidation has to do with an increase in oxidation number. This increase will always be positive.

Hence, we have to look out for the change in which there is an increase in oxidation number and this occurs for the change –1 to +2.

Learn more about oxidation:https://brainly.com/question/13110055?

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