A、Fe<sub>2sub>O<sub>3sub>·nH<sub>2sub>O B、Al(OH)<sub>3sub> C、Fe(OH)<sub>3sub> D、BaSO<sub>4sub>
A、Fe<sub>2sub>O<sub>3sub>·nH<sub>2sub>O B、Al(OH)<sub>3sub> C、Fe(OH)<sub>3sub> D、BaSO<sub>4sub>
A、CaSO<sub>4sub>、CaCO<sub>3sub> B、BaSO<sub>4sub>、Agcl C、NaOH、Ca(OH)<sub>2sub> D、NaOH、CaCO<sub>3sub>
A、NaOH B、浓NH<sub>3sub>·H<sub>2sub>O C、NH<sub>4sub>Cl+NH<sub>3sub> D、稀NH<sub>3sub>·H<sub>2sub>O
A、Fe<sub>2sub>O<sub>3sub>+3H<sub>2sub>SO<sub>4sub>==Fe<sub>2sub>(SO<sub>4sub>)<sub>3sub>+3H<sub>2sub>O B、Cu(OH)<sub>2sub>+2HCl==CuCl<sub>2sub>+2H<sub>2sub>O C、CaCO<sub>3sub>+2HCl==CaCl<sub>2sub>+H<sub>2sub>O+CO<sub>2sub>↑ D、BaCl<sub>2sub>+H<sub>2sub>SO<sub>4sub>==BaSO<sub>4sub>↓+2HCl
A、BaSO<sub>4sub> (1.1×10-10) B、CaSO<sub>4sub>(9.1×10-6) C、PbSO<sub>4sub> (1.6×10-8) D、Ag<sub>2sub>SO<sub>4sub> (1.4×10-5)