HCl+ Mg = HCl+ MgO= HCl + Mg (OH)2= HCl+AgNO3=
2HCl+Mg=MgCl2+H2 MgO+2HCl=MgCl2+H2O Ca(OH)2+2HCl=CaCl2+2H2O HCl+AgNO3=HNO3+AgCl