Which option is a compound? A. Oxygen

B. Carbon

C. Carbon dioxide

D. Air

Carbon Dioxide.

Explanation: Oxygen and Carbon are both elements, so they can’t be compounds. Air is a mixture of gasses, not a compound.

c.is a substance that requires a small amount of energy per gram to raise its temperature; has strong cohesive forces between molecules.

explanation:

a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.