а) Na2SO3+2HCl=2NaCl+H2O+SO2
2Na+SO3+2H+2Cl=2Na+2Cl+H2O+SO3
б)Mg(NO3)2+2KOH=2KNO3+Mg(OH)2
Mg+2NO3+2K+2OH=2K+2NO3+Mg(OH)2
а) Na2SO3+2HCl=2NaCl+H2O+SO2
2Na+SO3+2H+2Cl=2Na+2Cl+H2O+SO3
б)Mg(NO3)2+2KOH=2KNO3+Mg(OH)2
Mg+2NO3+2K+2OH=2K+2NO3+Mg(OH)2