Ответ:
2Cu+O2=2Cuo
CH4=C+2H2
2Al+3S=Al2S3
2N2+5O2=2NO5
N2+3H2=2NH3
3Ca+N2=Ca3N2
2Zn+O2=2ZnO
4Fe+3O=Fe2O3
H2+Cl2=2HCl
2Na+Cl2=2NaCl
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Ответ:
2Cu+O2=2Cuo
CH4=C+2H2
2Al+3S=Al2S3
2N2+5O2=2NO5
N2+3H2=2NH3
3Ca+N2=Ca3N2
2Zn+O2=2ZnO
4Fe+3O=Fe2O3
H2+Cl2=2HCl
2Na+Cl2=2NaCl