A central concept of the kinetic theory, one of the "big ideas" of chemistry, is the belief that
a. every chemical process uses or produces energy, often in the form of heat.
b. chemical reactions involve processes in which reactants produce products.
c. the particles in matter are in a state of constant motion.
d. for every reaction there is an eqsual and opposite reaction.
Answer: the particles in matter are in a state of constant motion