2Na+2H2O =>2NaOH+H2
2Mg+O2=>2MgO
MgO +H2O =>Mg(OH)2
HCl+AgNO3=>AgCl+HNO3
H2SO4+BaCl2=>BaSO4+2HCl
2HCl+CuO=>CuCl2+H2O
AlCl3 + 3NaOH =>Al(OH)3+3NaCl
CuSO4+2NaOH =>Cu(OH)2+Na2SO4
NiSO4+2NaOH =>Ni(OH)2+Na2SO4
FeSO4+ 2NaOH => Fe(OH)2+Na2SO4
FeCl3 +3NaOH =>Fe(OH)3+3NaCl
Cu(OH)2+2HCl=>CuCl2+2H2O
Cu+2AgNO3=>Cu(NO3)2+2Ag
4Al+3O2=>2Al2O3
