Look at the models of molecules below. Select all the compounds. carbon monoxide
carbon
tetrachloride
phosphorus
tribromide
bromomethane
chloromethanol
water

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

27. =3,500,000 x 4,000 = 14,000,000,000

The answer to your question is c. mitochondria.