What is a chemical formula? A chemical formula is a formula that tells how many atoms of a particular element, or multiple elements, are found within a certain chemical compound.

Learn about writing the chemical formula for ionic compounds. Understand how to write chemical formulas for binary and polyatomic ionic compounds and see examples.

What is percent composition? Learn how to find the percent composition of compounds. See how to determine the empirical formula from percent composition.

Learn about binary molecular compounds in this 5-minute video. Explore the prefixes, naming rules, and examples, then test your knowledge with an optional quiz.

Learn the definition of the structural formula, learn about molecular vs structural formulas, and explore the main types of structural formulas with examples.

In this lesson, learn how to identify ionic compound formulas and see the required steps for writing and naming ionic compounds through several...

Alkanes are linear, or branching, compounds that are made of varying numbers of carbon atoms that are all saturated with hydrogen atoms. The formula for an alkane is CnH (2n+2).

Learn how to write a chemical formula given a chemical structure, and see examples that walk through sample problems step-by-step for you to improve your chemistry knowledge and skills.

What is a chemical compound? Learn about types of chemical compounds and examples of compounds. Learn how chemical formulas represent the components of compounds.

Learn the anhydrate definition and what a hydrated compound is. Understand what an anhydrate is, the hydrate formula, and how to find the formula...