A、无水Na<sub>2sub>CO<sub>3sub> B、硼砂 C、邻苯二甲酸氢钾 D、CaCO<sub>3sub>
A、CaSO<sub>4sub>、CaCO<sub>3sub> B、BaSO<sub>4sub>、Agcl C、NaOH、Ca(OH)<sub>2sub> D、NaOH、CaCO<sub>3sub>
A、Ca(OH)<sub>2sub>和CaCO<sub>3sub> B、CaO和CaCO<sub>3sub> C、CaO和Ca(OH)<sub>2sub> D、Ca(OH)<sub>2sub>和CaO
A、CaCO<sub>3sub>CaO+CO<sub>2sub>↑ B、CO<sub>2sub>+CaOH<sub>2sub>=CaCO<sub>3sub>↓+H<sub>2sub>O C、CaO+H<sub>2sub>O=CaOH<sub>2sub>