Question

In a chemical reaction, the products are?

A. the new substances that are formed during the reaction.

B. the substances that are broken apart or combined in the reaction.

C. all of the chemical formulas that are used during the reaction.

D. the number of atoms of each chemical present in the reaction.

Answer 1

A. the new substances that are formed during the reaction.

Reactants → Products
What is first used ⇒ What is made/new substance

Of course, the energy and mass would be conserved.