Respuesta :

Reactants - The substance which participate in a chemical reaction are called reactants.

[tex] \rm \: Example - H_2 \: , \: O_2[/tex]

Product - The substance which are formed by chemical reaction between the reactants are called product.

[tex]\rm \: Example - H_2 O[/tex]

Explanation:

reactant is a substance that is present at

the start of a chemical reaction.

product is a substance

that is present at the end of a chemical

reaction.