An exothermic reaction a. takes more time than an endothermic reaction. b. releases more energy than it uses. c. releases less energy than it uses. d. does not require activation energy.

Answer : The correct option is, (B) releases more energy than it uses.

Explanation :

Endothermic reaction : It is defined as the chemical reaction in which the energy is absorbed from the surrounding.

In the endothermic reaction, the energy of reactant are less than the energy of product.

Exothermic reaction : It is defined as the chemical reaction in which the energy is released into the surrounding.

In the exothermic reaction, the energy of reactant are more than the energy of product.

Hence, the correct option is, (B) releases more energy than it uses.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."