1.S +O2 =点燃= SO2
32 :32 :64
1: 1: 2
2.Fe + CuSO4==Cu+ FeSO4
56 :160 :64 :152
7:20:8:19
3.124,160,284
4.C2H4
1.32:32:64
2.56:160:64:152
S + O2 =点燃= SO2
32 32 64
Fe + CuSO4====Cu+ FeSO4
56 160 64 152
1.1:1:2
2.56:160:64:152
就是相对原子质量比
S +O2 =点燃= SO2
32 :32 :64
1: 1: 2
Fe + CuSO4==Cu+ FeSO4
56 :160 :64 :152
7:20:8:19
124,160,284
C2H4