Ответ:
4Na + O2 = 2Na2O
Ca + Cl2 = CaCl2
4K + O2 = 2K2O
2Mg + O2 = 2Mgо
2Na + Cl2 = 2NaCl
2K + Cl2 = 2KCl
Mg + Cl2 = MgCl2
2Ca + O2 = 2CaO
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Ответ:
4Na + O2 = 2Na2O
Ca + Cl2 = CaCl2
4K + O2 = 2K2O
2Mg + O2 = 2Mgо
2Na + Cl2 = 2NaCl
2K + Cl2 = 2KCl
Mg + Cl2 = MgCl2
2Ca + O2 = 2CaO