Ответ:
2Ca, 2CaO
4Na, 2O2, 2Na2O
4Fe, 3O2, 2Fe2O3
2Zn, 2ZnO
2C, 2CO
2O2, 2NO2
2H2, 2H2O
2P2, 5O2
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Answers & Comments
Ответ:
2Ca, 2CaO
4Na, 2O2, 2Na2O
4Fe, 3O2, 2Fe2O3
2Zn, 2ZnO
2C, 2CO
2O2, 2NO2
2H2, 2H2O
2P2, 5O2