How do comets generally differ chemically from asteroids originating in the inner asteroid belt?

Answer

Comets are inherently wetter and richer in volatiles and complex organics

Asteroids from the inner belt are typically characterized as drier and higher in rocky/metallic components, whereas comets, originating farther out, carry significant amounts of ice and complex carbon-based materials.

How do comets generally differ chemically from asteroids originating in the inner asteroid belt?
Earthwatercompositioncometlife