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Representing molecules

Last updated Feb 20, 2023

A molecule can be represented in a couple of different ways. 1

The detail is given below:

# Chemical Formula

In this way, each of the atom of the molecule is counted, and the number is shown in the subscript. For example: $C_4H_9OH$ is the chemical formula of Butane.

# Full Structure

Using this representation, all of the atoms and their bonds are shown. For example, the above mentioned butane would be represented as:

Each dash represents a covalent bond.

# Line-angle Structure

This is a more compact representation, where C is assumed at the corners or ends that don’t have any explicit atom shown, and hydrogen is assumed based on the carbon valency and free bonds.

# References