Question

Which of the following BEST describes a reactant in a chemical reaction? 1 A substance that is formed after completion of a reaction. 2 A substance that increases or decreases the speed of a reaction. 3 A substance that takes part and undergoes changes in a reaction. 4 A substance that always breaks down into smaller substances during a reaction. fast pls

Answer 1

Answer:

a substance that take part and undergoes change in reaction