19 Matching Annotations
  1. Oct 2023
    1. Identify covalent and ionic compounds.

      Ionic compounds are (usually) formed when a metal reacts with a nonmetal (or a polyatomic ion). Covalent compounds are formed when two nonmetals react with each other

    2. selenium monoxide

      SeO

    3. sulfur hexafluoride

      SF6

    4. dioxygen difluoride

      O2F2

    5. nitrogen dioxide

      NO2

    6. PCl3

      covalent

    7. F2

      cobalent

    8. a(OH)

      both

    9. N2O

      The elements in N2O4| are both nonmetals, rather than a metal and a nonmetal. Therefore, the atoms form covalent bonds.

    10. Na3PO4Na3PO4\ce{Na_3PO_4}

      Because sodium is a metal and we recognize the formula for the phosphate ion, we know that this compound is ionic. However, within the polyatomic phosphate ion, the atoms are held together by covalent bonds, so this compound contains both ionic and covalent bonds.

    11. Na2O

      The elements in Na2O are a metal and a nonmetal, which form ionic bonds.