2HCl + Mg(OH)2 -> MgCl2 + 2H20 If 2.5 moles of magnesium hydroxide react with excess hydrochloric acid, how many
moles of water will be produced?

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.