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Polyatomic ions are atoms held together by covalent bonds as a group and that from CHM 1220 at Wayne State University
A polyatomic ion can form an ionic bond with another ion, and an ionic bond is a type of chemical bond. Some examples: One mole of ammonium ions plus one mole of chloride io â¦ ns produces one mole of ammonium chloride. NH4+ + Cl- ---> NH4Cl One mole of magnesium ions plus two moles of nitrate ions produces one mole of magnesium nitrate.