Which statement is true about the reaction shown by this chemical equation? HCI + NaOH
NaCl + H20
O A. It is exothermic.
B. It is endothermic.
C. It is a combustion reaction.
D. It is a synthesis reaction.

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.