设同等质量M,查元素周期表知Mg24 Al27 Fe56 Zn65
1.
Mg + HCL = MgCl +H2
M m
24 2
m(H2)=(M/24)*2=M/12
2.
2Al + 6HCL = 2AlCl3 +3H2
M m
2*27 3*2
m=(M/54)*6=M/9
3.
Fe + 2HCL = FeCl2 + H2
M m
56 2
m=M/28
4.
Zn +2HCL = ZnCl2 + H2
M m
65 2
m=M/32.5
由上4式可得比值m1：m2:m3:m4=24:18:56:65