1. For a successful collision to happen the reactants need to collide...

• Quickly

• Slowly

• Never

For a successful collision to happen the reactants need the correct...

• Number

• Activation energy

• Size

• Energy to activate

Which are two things that can make a reaction faster:

• Temperature

• Strength

• Concentration

• Time

4. Which shows a high concentration?

• A

• B

Where has the reaction stopped?

• A

• B

• C

4. Which one will have a slower rate of reaction?

• A

• B

To work out a tangent line we use:

• x

  ---

  y

• ∆y

  ---

  ∆x

• ∆y

  ---

  ∆x

  x100

• y - x

Temperature increases the rate of reaction because it increases the...

• Activation energy

• Amount of particles

• The kinetic energy of the particles

• The size of the particles

How does a catalyst work in speeding up a reaction?

• By lowering the activation energy

• By giving them more energy

• By making them more available

• By increasing reactants

Where is there the most product particles?

• A

• B

• C