How to Speed Up a Chemical Reaction

Multiple Choice

How does reducing the time allowed between classes help increase the rate of collisions?

• Students will have more time to socialize and collide with each other

• Students will have more time to prepare for the dance

• Students will have more opportunities to study chemistry between classes

• Students will move more quickly, resulting in collisions with higher energy

Multiple Choice

What is the main similarity between colliding with someone and knocking the books out of their hands and a chemical reaction?

• Both require a high temperature to occur

• Both involve the use of a catalyst

• Both involve the breaking up of clumps into individual particles

• Both require the correct orientation and enough energy

Multiple Choice

How does increasing the temperature of a reaction mixture affect the rate of a chemical reaction?

• It increases the rate of the reaction

• It has no effect on the rate of the reaction

• It depends on the specific reaction being studied

• It decreases the rate of the reaction

Multiple Choice

What is the purpose of a chemical catalyst in a reaction?

• To increase the concentration of reactants

• To decrease the overall population of the reactants

• To increase the activation energy of the reaction

• To lower the energy required to start the reaction

Multiple Choice

 Which of the following is NOT one of the five ways to increase the rate of a chemical reaction mentioned in the video?

• Shrink the size of the reaction vessel

• Increase the overall population of the reactants

• Reduce the time allowed between classes

• Travel in packs

• Add a catalyst

Match

Match the following analogy decriptions with the correct chemistry concept

• shrink size of hallways

• increase population of school

• half the time between classes

• break up students in packs

• hire a matchmaker

shrink container or increase concentration

increase number of particles

speed up particles by adding heat

break clumps into individual particles

use a catalyst

• shrink container or increase concentration

• increase number of particles

• speed up particles by adding heat

• break clumps into individual particles

• use a catalyst