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一、实验原理CaCO3+2HCI=CaCI2+H2O+CO2↑CO2+Ca(OH)2=CaCO3↓+H2OCO2+2NaOH=NaCO3+H2O二、实验试剂石灰石(或大理石)、稀盐酸(2∶1)、石蕊溶液、澄清石灰水、氢氧化钠稀溶液.三、实验装置及用品1.气体实验微型环保装置制作材料30mL塑料注射器管1支,20mL塑料注射器管1支,5mL塑料注射器1支(带针头),丫形三通管一个,
First, the experimental principle CaCO3 + 2HCI = CaCI2 + H2O + CO2 ↑ CO2 + Ca (OH) 2 = CaCO3 ↓ + H2OCO2 + 2NaOH = NaCO3 + H2O Second, the experimental reagent Limestone (or marble), dilute hydrochloric acid Litmus solution, clarified limewater, sodium hydroxide dilute solution Third, the experimental apparatus and supplies 1. Gas experiment miniature environmental protection device production materials 30mL plastic syringe tube 1, 20mL plastic syringe tube 1, 5mL plastic syringe 1 (with Needle), a Y-shaped tee,