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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.
Best Answer: The answer is HCl (answer B). NaF and MgO are both ionic compounds. The difference in the electronegativities of Na and F is 3.05, and the difference in Mg and O is 2.13. HCl is a polar covalent bond because the difference in the electronegativities of the two elements is only 0.96. Br2 and O2 both contain covalent bonds because there is no difference in electronegativity between the same element.