Organic chemistry/How are organic molecules represented?
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- Empirical Formula
The empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in a compound.  For example, the empirical formula of hydrogen peroxide, H2O2, is H1O1. It shows the ratio of each atom in a molecule.
- Molecular Formula
Molecular formula are a way of describing a chemical structure in letters and numbers.
- Structural formula
- Lewis Structures
- Line-Angle Drawings
- Naming conventions