Rev1

The rate of a chemical reaction is NOT affected by which of the following:

• temperature
• concentration
• particle size (surface area)
• All of these affect reaction rates

The rate of a reaction increases as temperature__________________.

• Decreases
• Increases
• Stays the Same

A ______________ is a substance that increases the rate of a reaction without being used up during the reaction. 

• catalyst
• product
• reactant
• solute

Catalysts permit reactions to proceed along a ___________energy path.

• lower
• higher

Smaller particle size allows for a _________ surface area to be exposed for the reaction.

• larger
• smaller

Increasing the temperature will increase the kinetic energy of particles, therefore increasing the collisions between particles.

• false
• true

Increasing the concentration of the reactants will slow down the reaction.

• false 
• true

Exothermic reactions release heat to the surroundings.

• true
• false

The ____________ states that atoms, ions, or molecules must collide in order to react.

• transition state

• activation energy

• rate law

• collision theory

The rate of a reaction increases as temperature__________________.

• Decreases
• Increases
• Stays the Same