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There are three main types of chemical formulas: empirical, molecular and structural. Empirical formulas show the simplest whole-number ratio of atoms in a compound, molecular formulas show the number of each type of atom in a molecule, and structural formulas show how the atoms in a molecule are bonded to each other.

Sections:
00:00 - Ways to represent molecules
00:10 - Naming molecules: example benzene
00:34 - Empirical formula explained
02:00 - Molecular formula of benzene
03:12 - Structural formula and bonding
04:55 - Organic shorthand notation
05:23 - Comparing empirical vs molecular formulas
05:50 - Example of water's formula types
06:25 - Water's structural formula
06:42 - Summary of molecular representations

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