Draw up formulas of compounds with oxygen, for sodium, lithium, calcium, barium, zinc (2), aluminum, boron (3),

Draw up formulas of compounds with oxygen, for sodium, lithium, calcium, barium, zinc (2), aluminum, boron (3), nitrogen (5), carbon (4), chlorine (7).

1) 2Na + O2 = 2NaO (sodium oxide)
2) 4Li + 2O2 = 2Li2O (lithium oxide)
3) 2Ca + O2 = 2CaO (calcium oxide)
4) 2Ba + O2 = 2BaO (barium oxide)
5) 2Zn + O2 = 2ZnO (zinc oxide (2))
6) 2Al + 3O2 = 2Al2O3 (aluminum oxide)
7) 2B + 3O2 = 2B2O3 (boron oxide (3))
8) 2N2 + 5O2 = 2N2O5 (nitric oxide (5))
9) С + O2 = CO2 (carbon monoxide (4))
10) 2Cl2 + 7O2 = 2Cl2O7 (chlorine oxide (7))



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