Ответы и объяснения

2013-12-04T12:17:47+00:00
2Fe+3Cl2= 2FeCl3
2Al+3S = Al2S3
Ca +N2+ CaN2
2Na+O2=Na2O2
2Cu+O2=2CuO
Ca+2C=CaC2
2Al+ 3C= Al2C3
Ca+H2 =CaH2
Zn+S =ZnS
4Al+3O2 = 2Al2O3