Name the compounds in parts a-d and write the formulas for...

Name the compounds in parts a-d and write the formulas for the compounds in parts e-h.
a. $\mathrm{Hg}_{2} \mathrm{O}$
b. $\mathrm{FeBr}_{3}$
c. $\operatorname{CoS}$
d. $\mathrm{TiCl}_{4}$
e. tin(II) nitride
f. cobalt(III) iodide
g. mercury(II) oxide
h. chromium(VI) sulfide

Key Concepts

Ionic Compound Nomenclature

This concept involves naming compounds by first writing the name of the cation (typically a metal) followed by the name of the anion (often a nonmetal or polyatomic ion). Understanding ionic nomenclature is crucial for both naming compounds from formulas and writing formulas from names, as it relies on a predictable ordering and naming convention based on the charges of the ions.

Oxidation States and Roman Numeral Nomenclature

Many compounds, especially those containing transition metals, require the use of oxidation states to distinguish between different ionic forms of the same element. The oxidation state, often indicated by a Roman numeral in parentheses, provides information on the charge of the metal ion, which is essential for determining the correct formula of the compound.

Charge Balance and Formula Writing

When writing chemical formulas, the total positive charge from cations must balance the total negative charge from anions, ensuring that the overall compound is electrically neutral. This principle of charge balance guides the determination of the correct subscripts in formulas based on the known or inferred charges of the ions involved.

Binary Compound Naming

Binary compounds consist of exactly two different elements, and their names typically reflect the composition using conventional suffixes (such as -ide for nonmetal anions). Mastery of binary naming is essential for correctly identifying simple ionic compounds and writing the corresponding chemical formulas.

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