In part 1 synthesis reactions, the product of the first reaction is al(oh)3. the product of the second reaction is mg(oh)2. describe what you observed in each reaction. next, consider the general ab form of a synthesis reaction. if the first set of reactants is nh4oh and kal(so4)2 and the second set of reactants is mgso4 and nh4oh, is either reaction considered a synthesis reaction as labeled in the laboratory? why or why not? note: mg(oh)2 and al(oh)3 are both used commercially as antacids.