Fe+2HCl=2FeCl2+H2
Fe+2NaOH+2H2O=Na2[Fe(OH)4]
HCl+NaOH=NaCl+H2O
BaO+2HCl=BaCl2+H2O
Cu(NO3)2+Fe=Fe(NO3)2+Cu
Cu(NO3)2+2NaOH=2NaNO3+Cu(OH)2
Fe+2HCl=2FeCl2+H2
Fe+2NaOH+2H2O=Na2[Fe(OH)4]
HCl+NaOH=NaCl+H2O
BaO+2HCl=BaCl2+H2O
Cu(NO3)2+Fe=Fe(NO3)2+Cu
Cu(NO3)2+2NaOH=2NaNO3+Cu(OH)2