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In CO2, O is more electronegative meaning that it seeks to pull the electron between itself and carbon more strongly which results in unequal sharing of electrons. In O3, when atoms are bonded together, the electrons are shared equally. 7. Analyze whether dinitrogen tetroxide, N2O4, has covalent or ionic bonds.nswers: 1. Determine if the following compounds are likely to have ionic or covalent bonds. a. magnesium oxide, MgO ionic (metal and nonmetal) b. Strontium chloride, SrCl2 ionic (metal and nonmetal) c.
Two nonmetals = covalent   metal + nonmetal= ionic   Therefore sodium oxide is formed by ionic bonds, as sodium is a metal and oxygen is a non-metallic element.9 people found this useful.itrogen oxide is a covalant compound because it is made up of two non-metals nitrogen and oxygen and it forms the bond by sharing electrons. 1 person found this useful.