FACTORS AFFECTING RATE OF REACTION

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

• temperature

• concentration

• particle size

• all of these affect reaction rates

the rate of reaction increases as temperature

• decrease

• stays the same

• increases

Products will form faster if____________

• the particle size of the reactants are larger

• the temperature decreased

• concentration of the reactants are increased

• the reaction is not stirred

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

• catalyst

• reactant

• product

• solute

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

• false

• true

The glow stick glowed brighter in hot water because

• the chemical reaction slowed down in hot water

• the chemical reaction speed up in hot water

• temperature has no effect on the glow stick chemical reaction

• all of the above

Four light sticks are placed in water baths of varying temperatures. At which temperature would the light stick glow the brightest?

• 0

• 30

• 20

• 40