Select the correct statement about chemical energy, a term used by biologists to refer to potential energy available for release in a chemical reaction.

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.