What are the substances that interact to form new substances in a chemical reaction called?

Reactants or Products?

The answer is reactants.

Reactants Definition- A reactant is the chemical substances present at the start of a chemical reaction.

A products definition is the substance produced in a chemical reaction.

The answer is reactants because they start at the beginning of a chemical reaction, and have to interact with other substances to make a product. product is not able to interact with new substances, nor make new substances. Therefore, in a chemical reaction, if you want the substances to interact, and form new substances, it has to be a reactant.

A way to remember this is think of it as if  you are a reactant and you are interacting to form new substances.

i believe it is c.) 1575 j.