# How do you do addition reactions?

Oct 12, 2016

You combine an unsaturated compound with another substance to form a larger molecule.

#### Explanation:

A double or a triple bond is broken, and the product contains only single bonds.

For example,

$\text{H"_2"C=CH"_2 + "H-Cl" → "H-CH"_2"-CH"_2"-Cl}$

The substances that are added could be halogens, hydrogen, hydrogen halides, or water.