The chemical formula for urea is (NH2)2CO. It is a white, crystalline solid that is highly soluble in water. Urea is produced naturally in the body as a waste product of protein metabolism. It is also produced synthetically for use in fertilizers, animal feed, and plastics.

The chemical equation for the formation of urea is:

2 NH3 + CO2 → (NH2)2CO + H2O

This reaction is catalyzed by the enzyme urease. Urea is also broken down by urease to produce ammonia and carbon dioxide.

Urea is an important nitrogen fertilizer. It is also used as a source of nitrogen in animal feed. Urea is also used in the production of plastics, such as melamine and urea-formaldehyde resin.