Increasing the temperature will increase the rate of reaction.

• True

• False

A________is a substance that increases the rate of a reaction without being used up during the reaction.

• Catalyst

• Solution

• Size

Choose the factors that affecting the rate of reaction.

• Size of reactant

• Temperature

• Catalyst

• Pressure

• Concentration

Smaller size of reactants have________surface area to be exposed for the reaction.

• Larger

• Smaller

• Same

Pick two (2) options that will INCREASE the rate of reaction.

• Reducing heat

• Adding catalyst

• Adding heat

• Reduce concentration

The ______ the concentration, the _____ the rate of reaction.

• Higher,higher

• Lower,lower

• Higher, lower

• Lower, higher

Which factor only affect the rate of reaction when involved gases as the reactant?

• Size of the reactant

• Concentration

• Pressure

Meat cooks faster if it is cut into smaller sizes.

• True

• False

Food cook faster in a lower temperature.

• True

• False

Why does grinding a solid reactant into powder increase the rate of reaction?

• It changes the temperature

• It increase the surface area

• It decrease the concentration of the reactants

• It reduces the energy of the reactant