Question

22．（8分）用离子方程式表达下列应用或现象

Answer 1

2CH3COOH +Mg(OH)2 ==2CH3COO- +Mg2+ +2H2O

2CH3COOH +CaCO3 ==2CH3COO- +Ca2+ +CO2↑ +H2O

Ca2+ +CO2 +2OH-==CaCO3↓ + H2O

HCO3- +H+ ==CO2↑ +H2O

2H+ + SO42- +Ba2+ + 2OH- ==BaSO4↓ +2H2O