СРОЧНО РАССТАВЬТЕ КОЭФ-ТЫ,В СЛЕД.УР.ХИМ.РЕАКЦИЙ: "ДАЮ 100БАЛЛОВ"!!!
1. H2+N2=NH3
2. CH4+O2=CO2+H2O
3. Al+Cl2=AlCl3
4. Zn+O2=ZnO
5. P+O2=PO
6. Cu+S=CuS
7. Ca+O2=CaO
8. HI=I2+H
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