Chemical Nomenclature
The following summarizes the distinguishing features of different kinds of formulas and names.
Binary Covalent Compounds
Binary Ionic Compounds
Ionic Compounds with Polyatomic Ion(s) General Formula MaXb or (NH4)aXb X = recognized formula of polyatomic ion For example, Li2HPO4 or CuSO4 or NH4Cl or (NH4)2SO4 General Name (name of metal) (name of polyatomic ion) or (name of metal)(Roman #) (name of polyatomic ion) or ammonium (root of nonmetal)ide or ammonium (name of polyatomic ion) For example, lithium hydrogen phosphate or copper(II) sulfate or ammonium chloride or ammonium sulfate
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Ionic Compounds with Polyatomic Ion(s)
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