Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
These are collisions between reactant molecules that result in a chemical reaction. For a collision to be effective, the molecules must collide with sufficient energy (known as activation energy) and in the correct orientation.
A theory that states that chemical reactions can only occur when particles collide with each other with sufficient energy and in the correct orientation.