Chapter 8 Chemical Reactions Flashcards
1
Q
Activation energy
A
The energy that must be provided by a collision to break apart the bonds of the reacting molecules.
2
Q
Catalyst
A
A substance that increases the rate of reaction by lowering the activation energy.
3
Q
Chemical equilibrium
A
The point at which the forward and reverse reactions take place at the same rate so that there is o further change in concentrations of reactants and products.
4
Q
Collision theory
A
A model for a chemical reaction that states that molecules must collide with sufficient energy in order to form products.
5
Q
Le Chartelier’s Principle
A
When a stress is placed on a system at equilibrium, the equilibrium shifts to relieve that stress.
6
Q
Rate of reaction
A
The speed at which reactants are used to form product(s).
