I'm not quite sure how to balance this can anyone help me balance this?

Question

Fe (s) + NO3- (aq) ---> Fe3+ (aq) + N2O (g)

This occurs in basic solution and water can be added wherever necessary.

Answer 1

Identify your oxidized and reduced components:
Fe(0) -> Fe+3 oxidation
NO3- -> N2O reduction (N+5 to N+1)
Write half reactions.
Fe(s) -> Fe+3 + 3e
2NO3- + 5H2O +4e -> N2O + 10 OH-
the oxidation eqtn by 4 and the reduction eqtn by 3, and eliminate the electrons on both sides.