Write and balance the equation for the combination of ammonia gas with solid copper (II) oxide to produce copper metal, nitrogen gas, and liquid water. What are the states of matter of each element/compound of the equation?

Original equation:

CuO2 + NH3 - - > H2O + N2 + Cu

To write a balanced equation, you multiply a compound or element ie. NH3 by a number in front so that the reactant side and product side have the same number of atoms.

3CuO2 + 4NH3 - - > 6H2O + 2N2 + 3Cu

3CuO2 - solid

4NH3 - gas

6H2O - liquid

2N2 - gas

3Cu - solid