2Ca + 2HCl -> 2CaCl2 + H2Mg + 2HCl -> MgCl2 + H2Ca + H2SO4 -> CaSO4 + H22Al + 6HCl -> 2AlCl3 + 3H22Al + 3H2SO4 -> Al2(SO4)3 + 3H2
2Ca + 2HCl -> 2CaCl2 + H2
Mg + 2HCl -> MgCl2 + H2
Ca + H2SO4 -> CaSO4 + H2
2Al + 6HCl -> 2AlCl3 + 3H2
2Al + 3H2SO4 -> Al2(SO4)3 + 3H2