In contrast to a saturated molecule what does an unsaturated molecule contain?
Unsaturated molecules contain kinks, and has at least 2 double bonds in their chains.
The double bonds is what forms the kinks in the unsaturated molecule. This is what makes the particles spread out more, forming a liquid. They are unsaturated, they do not contain as much as hydrogen as saturated molecules
Saturated molecules have single bonds and have no kinks in their chains. The particles are close together because of the single bonds, forming a solid. Saturated fats are therefore solids, and packed with hydrogen. They are also the leading cause of cardiovascular disease