Odpowiedź :
a) H2SO3+2NaOH--->Na2SO3+2H2O
2H+ +SO3 2- +2Na+ +2OH- --->2Na+ +SO3 2- +2H2O
2H+ +2OH- --->2H2O
2HNO3+Mg(OH)2--->Mg(NO3)2+2H2O
2H+ +2NO3- +Mg2+ +2OH- --->Mg2+ +2NO3- +2H2O
2H+ +2OH- --->2H2O
H3PO4+3KOH--->K3PO4+3H2O
3H+ +PO4 3- +3K+ +3OH- --->3K+ +PO4 3- +3H2O
3H+ +3OH- --->3H2O
b) Mg+H2CO3--->MgCO3+H2
6K+2H3PO4--->2K3PO4+3H2
Zn+2HCl--->ZnCl2+H2
Ca+H2SO4--->CaSO4+H2
c) MgO+H2SO4--->MgSO4+H2O
CaO+2HCl--->CaCl2+H2
K2O+2HNO3--->2KNO3+H2O
Na2O+H2S--->Na2S+H2O
d) 2NaOH+SO3--->Na2SO4+H2O
2KOH+N2O5--->2KNO3+H2O
Mg(OH)2+CO2--->MgCO3+H2O
6Ca(OH)2+P4O10--->2Ca3(PO4)2+6H2O
e) Pb(NO3)2+H2CO3--->PbCO3↓+2HNO3
3ZnCl2+2H3PO4--->Zn3(PO4)2↓+6HCl
2AlBr3+3H2SO3--->Al2(SO3)3↓+6HBr
K2SO4+Ba(OH)2--->BaSO4↓+2KOH
2Na3PO4+3Sr(OH)2--->Sr3(PO4)2↓+6NaOH
K2CO3+Ca(OH)2--->CaCO3↓+2KOH
3Ca(NO3)2+2K3PO4--->Ca3(PO4)2↓+6KOH
MgSO3+Pb(NO3)2--->PbSO3↓+Mg(NO3)2