Across
- 4. chemical ____- force holding atoms together
- 5. measure of how fast particles are moving
- 8. ________ theory- particles must collide
- 9. used to calculate reaction rate
Down
- 1. a force applied over a certain area
- 2. process of pushing particles together
- 3. number of particles in a certain area
- 6. reaction ______- speed in which a reaction occurs
- 7. these particles have more energy