Question

question 12. what is the formula unit for the compound iron (iii) nitride? a) fen b) fe₃n₃ c) fe₂n₃ d) fe₃n₂

Explanation:

Iron (III) has a charge of \(+3\) (\(Fe^{3+}\)), and nitride (\(N\)) has a charge of \(-3\) (\(N^{3 -}\)). To form a neutral compound, the charges must balance. The ratio of \(Fe^{3+}\) to \(N^{3 -}\) is \(1:1\) because \((+3)+(-3) = 0\).

Answer:

A. FeN