Hg, CuO, Fe(OH)3, Mg
Hg + 2HCl -> HgCl2 + H2CuO + 2HCl -> CuCl2 + H2OFe(OH)3 + 3HCl -> FeCl3 + 3H2OMg + 2HCl -> MgCl2 + H2
Hg, CuO, Fe(OH)3, Mg
Hg + 2HCl -> HgCl2 + H2
CuO + 2HCl -> CuCl2 + H2O
Fe(OH)3 + 3HCl -> FeCl3 + 3H2O
Mg + 2HCl -> MgCl2 + H2