The balanced equation is
=4NH3 +6NO→ 5 N2 + 6H2O
In the reaction above the reactant are NH3 and NO
product are= N2 and H2O
The coefficients are 4, 6 ,5,6
Explanation
When writing a chemical reaction reactants are written on the left hand side, while product are written on right hand side.
Coefficient are the number in front of the formula in a balanced chemical reaction.