A、CaSO<sub>4sub> B、CaSO<sub>4sub>•H<sub>2sub>O C、CaSO<sub>4sub>•2H<sub>2sub>O D、CaSO<sub>4sub>•1/2H<sub>2sub>O
A、CaSO<sub>4sub>·H<sub>2sub>O B、CaSO<sub>4sub>·2H<sub>2sub>O C、CaSO<sub>4sub>·3H<sub>2sub>O D、CaSO<sub>4sub>·4H<sub>2sub>O
A、KMnO<sub>4sub>法测定H<sub>2sub>O<sub>2sub> B、溴酸盐法测定苯酚 C、间接碘量法测定Cu2+ D、用已知准确浓度的Na<sub>2sub>S<sub>2sub>O<sub>3sub>溶液标定I<sub>2sub>
A、KCl > CaCl<sub>2sub> > K<sub>2sub>SO<sub>4sub> > CaSO<sub>4sub> B、CaSO<sub>4sub> > CaCl<sub>2sub> > K<sub>2sub>SO<sub>4sub> > KCl C、CaCl<sub>2sub> > CaSO<sub>4sub> > KCl > K<sub>2sub>SO<sub>4sub> D、K<sub>2sub>SO<sub>4sub> > CaSO<sub>4sub> > CaCl<sub>2sub> > KCl