true

false

The energy needed for a reaction to occur

The minimum amount of energy needed for a reaction to potentially occur

The energy added by a catalyst

The energy possessed by the products

A

B

C

D

Molecules must collide in the correct orientation with enough energy to bond.

Molecules need enough energy to collide and react.

Atoms constantly collide and react.

The minimum energy needed for atoms to react

True

False

How much energy is needed for a reaction to occur.

The energy required to break a bond.

The time it takes for a reaction to occur.

Collision Theory

Helps to slow down a reaction

Raises the activation energy

Lowers the activation energy

Is consumed by the reaction

Temperature, Concentration, Pressure and Energy

Surface Area, Concentration, Energy and Pressure

Temperature, Pressure, Concentration and Surface area

Pressure, Surface area, Density and Energy

Not affect the rate of reaction.

Speed up the rate of reaction

Slow down the rate of reaction

Slow collision frequency

Allow less effective collision between the particles

Cause particles to lose speed

Increase collision between the particles thus increasing the rate.

concentration

surface area

temperature

reactants

catalyst

product

reactant

solute

it increases the amount of reactants

it lowers the activation energy

it increases the energy of particle collisions

it increases the frequency of particle collisions because there are more collision sites