第八章 4Al+3O2=2Al2O33Fe+2O2=（点燃）=Fe3O42Cu+O2=（△）=2CuO2Mg+O2=（点燃）=2MgOMg+2HCl=MgCl2+H2↑Zn+2HCl=ZnCl2+H2↑Fe+2HCl=FeCl2+H2↑2Al+6HCl=2AlCl3+3H2Fe+CuSO4=Cu+FeSO4Cu+2AgNO3=Cu（NO3)2+2Ag课题三...