There are moles of N atoms present in a 2.0 g C8H10O2N4.

Explanation:

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In this case, for this mole-mass relationship, we are able to compute the moles of nitrogen atoms by firstly obtaining the moles of the given compound, considering its molar mass that is 194 g/mol:

Then, by knowing that one mole of the given compound has four moles of nitrogen atoms, we apply the following relationship:

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the answers would be

the first one and the second one