AFOQT Practice Test

What are the substances formed at the end of a chemical reaction called?

1. Reactants

2. Products

3. Reagents

4. Catalysts

The correct answer is: Products

At the end of a chemical reaction, the substances that are formed are known as products. This terminology is widely used in chemistry to describe the end result of the reaction, which consists of new chemical substances created from the original materials, called reactants. The formation of products occurs as a consequence of the rearrangement of atoms during the reaction process. Reactants are the initial substances that undergo a transformation during the reaction, while reagents typically refer to substances used to cause a chemical reaction or used in a chemical analysis, without being part of the final product. Catalysts are agents that increase the rate of a chemical reaction but are not consumed in the process and do not appear in the final products. Therefore, "products" clearly denotes the resulting substances after the chemical reaction has taken place.