Write a balanced equation (using smallest integer values) for the following reaction: Mg3N2 + H2O --> NH3 + Mg(OH)2 What is the number of water molecules in the balanced equation?

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?