Question

which of the following is true about exothermic reactions?
1. the reactants of the reaction are more complex that the products.
2. the products of the reaction are more complex that the reactants.
3. the energy of the reactants is lower than that of the products.
4. the energy of the products is lower than that of the reactants.

Answer 1

In exothermic reactions, the following statement is true:

4. the energy of the products is lower than that of the reactants.

Exothermic reactions release energy, usually in the form of heat, which means that the energy of the products is less than that of the reactants. This often leads to the products being more stable than the reactants. The other statements are not generally true in the context of exothermic reactions.