Amolecule is made up of
a. two or more atoms covalently bonded together.
b. two or more elements next to each other.
c. two different atoms ionically bonded together.
d. two different elements next to each other.

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.