# chemistry

what is the oxidation number for nitrogen in the following?
NH3
NO2 1-
N2
NO2Cl
N2H4

We will be happy to critique your thinking or work.

I don't even have a clue as to how to work it out.

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1. For NH3 is -3, for NO2^1- is +3, for N2 is 0, for NO2Cl is +5, for N2H4 is -2

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