Name each of the following compounds, which contain...

Name each of the following compounds, which contain polyatomic ions.
a. $\mathrm{NaMnO}_{4}$
b. AlPO $_{4}$
c. $\mathrm{CrCO}_{3}$
d. $\mathrm{Ca}(\mathrm{ClO})_{2}$
e. $\mathrm{BaCO}_{3}$
f. $\mathrm{CaCrO}_{4}$

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Key Concepts

Polyatomic Ions

A polyatomic ion is a charged chemical species made up of two or more covalently bonded atoms that act as a single unit in chemical compounds. These ions have standard names and formulas (such as carbonate, phosphate, and chlorate) and understanding them is essential for accurately naming compounds that contain them.

Ionic Compound Nomenclature

The process of naming ionic compounds involves identifying the cation (usually a metal or positively charged ion) and the anion (often a nonmetal or polyatomic ion) and then combining their names in order, with the cation name preceding the anion name. Recognizing which part of the compound is a polyatomic ion and applying its common or systematic name is key to proper nomenclature.

Oxidation States in Naming

For metals that can have multiple oxidation states, it is important to determine the specific charge they possess in a compound. This is often indicated by a Roman numeral following the metal’s name. Knowing oxidation states helps in correctly balancing the overall charge of the compound and ensuring that the name accurately reflects the chemical composition.

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