84.1k views
3 votes
Which of the following are present both before and after a chemical reaction?

A. Reactants
B. Catalysts
C. Activation energy
D. Products

User Lyhong
by
8.4k points

2 Answers

3 votes
That would be a catalyst, it makes the reaction faster.
User Kkurian
by
7.3k points
4 votes
Catalysts is wrong because it is never in the chemical equation. It only speeds up the reactions. A is wrong because reactants are only before the chemical reaction. D is wrong because products are only after the chemical reaction. It's C because the energy is still in the molecules and is not lost when it goes through the chemical reaction. Hope this helps! ;)
User Paulius Venclovas
by
7.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.