钾2K+2HCl=2KCl+H2↑2K+H2SO4=K2SO4+H2↑钙Ca+2HCl=CaCl2+H2↑Ca+H2SO4=CaSO4+H2↑钠2Na+2HCl=2NaCl+H2↑2Na+H2SO4=Na2SO4+H2↑镁Mg+2HCl=MgCl2+H2↑Mg+H2SO4=MgSO4+H2↑铝2Al+6HCl=2AlCl3+3H2↑2Al+3H2SO4=Al2(SO4)...