Unit 12: Reaction Rates Quiz

Which of the following is the name for the amount of energy needed to trigger a chemical reaction?

• Catalyst

• Activated Complex

• Activation Energy

• Collision Theory

Tags

NGSS.HS-PS1-4

On the graph, the amount of energy needed to trigger a chemical reaction is represented by which of the following letters?

• D

• A

• B

• C

• E

Tags

NGSS.HS-PS1-4

Is energy absorbed or released in the graph above?

• Absorbed

• Released

• Both absorbed and released

• Impossible to tell from this graph

Tags

NGSS.HS-PS1-4

Using the graph, identify which letter represents how much energy is absorbed during this reaction?

• B

• A

• C

• D

• E

Tags

NGSS.HS-PS1-4

Using the graph, identify which letter represents where the activated complex forms?

• D

• C

• E

• B

• A

Tags

NGSS.HS-PS1-4

The graph shows a chemical reaction that occurs at two different temperatures (T1 and T2). At which temperature would the reaction proceed at a higher rate?

• T1

• T2

• They will both have the same rate

Tags

NGSS.HS-PS1-5

 Think back to the demonstration of the hydrogen peroxide reaction with the steel wool.  What was the purpose of the salt during the reaction?  Explain your answer using vocabulary from this unit.

Tags

NGSS.HS-PS1-5

Why does raising the temperature usually increase the rate of a chemical reaction?  Explain your answer using vocabulary from this unit.

Tags

NGSS.HS-PS1-5

Reaction 1: Sketch all parts of the diagram listed on the image.

Tags

NGSS.HS-PS1-4

Explain how you know if this reaction is endothermic or exothermic.

Tags

NGSS.HS-PS1-4