Which is a reactant in the cellular respiration reaction?
O water
O oxygen
O mitochondria
O cytoplasm

What state of matter is ice a. liquid b. element c. solid d. gas

How many molecules are in 6.0 moles of methane

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures