Question

Select the correct answer. In a given chemical reaction, the energy of the products is less than the energy of the reactants. Which statement is true for this chemical reaction? A. Energy is absorbed in the reaction. B. Energy is released in the reaction. C. There is no transfer of energy in the reaction. D. Energy is lost in the reaction.

Answer 1

Answer:

B

Explanation:

In science, it is understood that energy cannot be created, nor destroyed, it can only change form. Hence, certain reactions require a lot of energy, since their products have a higher energy than their reactants, or they release energy because their products have less energy than their reactants.

A: Is incorrect, because a reaction will not absorb energy if the products have less energy than the reactants.

B: Is correct, because in a reaction where the products have less energy, there will be a release of energy into the environment (usually heat).

C: Is incorrect, because there is always a transfer of energy in a chemical reaction.

D: Is incorrect, because energy cannot be "lost". It may be released into the environment, but it cannot be lost.

Answer 2

Answer:

D

Explanation:

If in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. In an endothermic reaction, the products have more stored chemical energy than the reactants. And in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.