【简答题】
A、HCl、HAc、NH<sub>3sub>、CH<sub>3sub>OH B、HI、HClO、NH<sub>4sub>+、Ac- C、HNO<sub>3sub>、NaOH、Ba(OH)<sub>2sub>、H<sub>3sub>PO<sub>4sub> D、NH<sub>3sub>、N<sub>2sub>H<sub>4sub>、CH<sub>3sub>NH<sub>2sub>、NH<sub>2sub>OH
A、NH<sub>3sub>+NH<sub>4sub>Cl B、HAc+NaAc C、Na<sub>2sub>HPO<sub>4sub>+NaH<sub>2sub>PO<sub>4sub> D、HCl+NaCl
A、MgO B、K<sub>2sub>Cr<sub>2sub>O<sub>7sub> C、CaSO<sub>4sub>·H<sub>2sub>O D、KH<sub>2sub>PO<sub>4sub>