1) Na2CO3 + H+OH- =NaOH+NaHCO3

NaHCO3+ H+OH- =NaOH+H2O+CO2

2)AlCl3+ H+OH- =Al(OH)Cl2+HCl

Al(OH)Cl2+ H+OH- =Al(OH)2CL+HCl

Al(OH)2Cl+ H+OH- = Al(OH)3+HCl

3) Ba(OH)2+ H+OH- Не идет

4) H2SO3+ H+OH- Не идет