Name each of the following ionic compounds: (a) K2 S (c) (NH4)3 PO4 (b) cos04 (d) Ca(ClO)2

Name: Problem 19, Chapter 3: Chemistry and Chemical Reactivity
Uploaded: 2020-06-02T21:09:30-08:00
Duration: 3 min 7 s
Channel: David Alvarez-Carbonell
Description: Name each of the following ionic compounds: (a) K2 S (c) (NH4)3 PO4 (b) cos04 (d) Ca(ClO)2

step 1 Okay, in this question, we need to name four compounds. First, we have K2S. So you have to remem

Name each of the following ionic compounds: (a) K2 S (c)...

Key Concepts

Ionic Compound Nomenclature

Ionic compound nomenclature is the systematic method for naming compounds formed by the attraction between cations and anions. The process typically involves naming the cation first followed by the anion, ensuring that the overall neutrality of the compound is maintained. When the cation is a metal with more than one possible charge, a Roman numeral is used to indicate its oxidation state.

Naming Cations

Naming cations involves first identifying the positive ion present in the compound. For metals, this is generally their elemental name; however, if the metal is a transition metal, the oxidation state (charge) is indicated with a Roman numeral in parentheses immediately after the metal's name. For polyatomic cations like ammonium, their accepted names are used directly.

Naming Anions

Naming anions requires identifying the negative ion in the compound. For non-metal elements, the name is modified to end in '-ide'. For polyatomic ions, the name is usually fixed and recognized by the polyatomic ion name, such as sulfate, phosphate, chlorate, or hypochlorite. This systematic approach ensures clarity in chemical formulas and communication.

Polyatomic Ions

Polyatomic ions are charged entities composed of two or more atoms covalently bonded together and that function as a single ion. They are common in ionic compounds, and many have well-established names and formulas. Examples include ammonium (NH4+), phosphate (PO4^3-), sulfate (SO4^2-), and hypochlorite (ClO^-), and understanding these is crucial for the proper naming and formulation of ionic compounds.

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