Apologia Chemistry Module 14 Quiz

How does a catalyst work in speeding up a reaction?

• By lowering the activation energy or reaction

• by giving them more energy

• by making them more available

Tags

NGSS.HS-PS1-5

The minimum amount of energy needed for colliding particles to react is called the

• Chemical Energy

• Kinetic Energy

• Activation Energy

• Potential Energy

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-4

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

• catalyst

• product

• reactant

• solute

A catalyst increases the efficiency of collisions between reactants.

• true
• false

Tags

NGSS.HS-PS1-5

Which of the reaction pathway shows the catalysed reaction?

• 1

• 2

Tags

NGSS.HS-PS1-4

When a catalyst is added to a reaction the rate of reaction,,,

• Increases

• Decreases

• Does not change

How does a catalyst work in speeding up a reaction?

• By lowering the activation energy or reaction

• by making them more available

• by giving them more energy

Tags

NGSS.HS-PS1-5

A catalyst changes the mechanism of the reaction

• True

• False

The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?

• Red, because the activation energy is larger

• Blue, because the activation energy is lower

• both reaction progress at the same rate

Tags

NGSS.HS-PS1-4

What is the parameter to measure the rate or speed of a reaction beside time?

• Change in volume
• Change in consentration
• Change in pressure
• Change in temperature

Tags

NGSS.HS-PS1-5