1.Na2SO4+BaCl2===BaSO4↓+2NaCl
2.CuO+2HCl===CuCl2+H2O
3.Na2CO3+H2SO4===Na2SO4+H2O+CO2↑
4.KOH+HCl===KCl+H2O
5.H2SO4+BaCl2===BaSO4↓+2HCl
6. NaCl+AgNO3===NaNO3+AgCl↓
7. CO2+2NaOH===Na2CO3+H2O
8 CuO+H2SO4===CuSO4+H2O
1.Na2SO4+BaCl2===BaSO4↓+2NaCl
2.CuO+2HCl===CuCl2+H2O
3.Na2CO3+H2SO4===Na2SO4+H2O+CO2↑
4.KOH+HCl===KCl+H2O
5.H2SO4+BaCl2===BaSO4↓+2HCl
6. NaCl+AgNO3===NaNO3+AgCl↓
7. CO2+2NaOH===Na2CO3+H2O
8 CuO+H2SO4===CuSO4+H2O