What would you expect from an exothermic reaction?
a. the energy levels will depend on the reaction.
b. the reactants and products will have the same energy.
c. the products will have more energy than the reactants.
d. the reactants will have more energy than the products

Option (d) is the correct answer.

Explanation:

A chemical reaction in which heat is liberated is known as an exothermic reaction.

For example,

As energy is released, hence total energy of products is less than the total energy of reactants in an exothermic reaction.

On the other hand, a chemical reaction in which heat is absorbed by reactant molecules is known as an endothermic reaction.

For example,

As energy is absorbed, hence total energy of reactants is less than the total energy of products in an endothermic reaction.

Thus, we can conclude that you expect from an exothermic reaction that the reactants will have more energy than the products.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

catya your not at all which answer i've seen you do this on another question!