Fe + HCl -> FeCl2 + H2Fe(OH)3 -> Fe(OH)2 + H2OCaO + H2O -> Ca(OH)2Li + H2O -> LiOH + H2CuO + HNO3 -> Cu(NO3)2 + H2O
Fe + HCl -> FeCl2 + H2
Fe(OH)3 -> Fe(OH)2 + H2O
CaO + H2O -> Ca(OH)2
Li + H2O -> LiOH + H2
CuO + HNO3 -> Cu(NO3)2 + H2O