Rates

What factor affects the rate of a chemical reaction by increasing the kinetic energy of particles?

• Catalysts

• Concentration

• Surface Area

• Temperature

Tags

NGSS.HS-PS1-5

What factor affects the rate of a chemical reaction by increasing the concentration, therefore speeding up the reaction?

• Catalysts

• Concentration

• Surface Area

• Temperature

Tags

NGSS.HS-PS1-5

What substance speeds up the reaction rate by lowering the activation energy needed to start the reaction?

• Concentration

• Catalysts

• Pressure

• Temperature

Tags

NGSS.HS-PS1-4

Which factor affects the reaction rate by increasing the volume for gaseous reactants, causing more particle collisions?

• Temperature

• Concentration

• Surface Area

• Pressure

Tags

NGSS.HS-PS1-5

The rate of a reaction increases as temperature__________________.

• Decreases

• Increases

• Stays the Same

Tags

NGSS.HS-PS1-5

Products will form faster if____________

• the particle size of the reactants are larger.

• temperature is decreased.

• concentration of the reactants are increased.

• the reaction is not stirred.

Tags

NGSS.HS-PS1-5

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

• catalyst

• product

• reactant

• solute

Tags

NGSS.HS-PS1-5

Usually lowering the temperature will slow down a reaction.

• false

• true

Tags

NGSS.HS-PS1-5

Which would not speed up a chemical reaction?

• Using a large beaker

• Increasing the concentration

• Decreasing particle size

• adding a catalyst

Tags

NGSS.HS-PS1-5

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

Tags

NGSS.HS-PS1-5