1) HCl + Mg(NO3)2 -> MgCl2 + 2HNO3HCl + SiO2 -> no reaction
2) HCl + Na2O -> NaCl + H2OHCl + Fe(OH)3 -> FeCl3 + 3H2O
3) HCl + Cu -> CuCl2 + H2H2SO4 + Cu -> no reaction
4) HCl + H2SO3 -> SO2 + 2H2OHCl + SO2 -> no reaction
1) HCl + Mg(NO3)2 -> MgCl2 + 2HNO3
HCl + SiO2 -> no reaction
2) HCl + Na2O -> NaCl + H2O
HCl + Fe(OH)3 -> FeCl3 + 3H2O
3) HCl + Cu -> CuCl2 + H2
H2SO4 + Cu -> no reaction
4) HCl + H2SO3 -> SO2 + 2H2O
HCl + SO2 -> no reaction