设镁、锌、铁三种金属与足量酸分别生成氢气的为X、Y、ZMg+ 2HCl = MgCl2 + H2↑24 230g XX=2.5gZn + 2HCl = ZnCl2 + H2↑65 230g YY=0.92gFe + 2HCl =FeCl2 + H2↑56 230g ZZ=1.07g设生成30克氢气,分别需要镁、锌、...