27.7k views
5 votes
What does every chemical reaction involve?

A change in concentration.
A change in mass.
A change in state.
A change in energy.

User Memon
by
7.8k points

2 Answers

5 votes
Chemical reactions involve breaking bonds in reactants and forming new bonds in products. Breaking bonds requires energy, and forming bonds releases energy.
User RinSer
by
8.2k points
3 votes
D. A change in energy.
User Brgerner
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.