Nomenclature Chemistry Example 3

Follow the full solution, then compare it with the other examples linked below.

Example 3

easy
Write the chemical formula for: (a) potassium bromide, (b) aluminum oxide.

Solution

  1. 1
    (a) K+^+ and Br−^- → KBr (1:1 ratio).
  2. 2
    (b) Al3+^{3+} and O2−^{2-} → crisscross charges: Al2O3\text{Al}_2\text{O}_3.

Answer

(a) KBr, (b) Al2O3\text{(a) KBr, (b) Al}_2\text{O}_3
To write formulas from names, determine the ion charges and balance them so the compound is electrically neutral.

About Nomenclature

The systematic method for naming chemical compounds according to IUPAC (International Union of Pure and Applied Chemistry) rules, ensuring that every compound has exactly one.

Learn more about Nomenclature →

More Nomenclature Examples

Example 1 easy

Name the following ionic compounds: (a) NaCl, (b) [formula], (c) [formula].

Example 2 medium

Name these covalent compounds: (a) [formula], (b) [formula], (c) [formula].

Example 4 hard

Name the following compounds: (a) [formula], (b) [formula], (c) [formula]. Explain the naming conven

← All Nomenclature Examples Nomenclature Concept

Related Concepts

Formula WritingIon