Valid Reaction Mechanisms

What is the catalyst in the following rate mechanism?

• HBr
• H₂O
• There is no catalyst

How many intermediates are in the following rate mechanism?

• 0
• 1
• 2
• 3

Tags

NGSS.HS-PS1-5

How many elementary steps are in the following reaction

• 1
• 2
• 3

Tags

NGSS.HS-PS1-5

Which of the elementary steps  has the highest activation energy?

• slow
• fast

Which step does a catalyst affect?

• slow 
• fast

Tags

NGSS.HS-PS1-5

A possible mechanism for reaction :

A + 2B → C + D

is shown below :

2B → E (slow)

A + E → C + D (fast)

which of the following diagram represents reaction pathway diagram for this reaction mechanism?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-4

What is the overall equation for the reaction with these elementary steps?

• 2A + 2B + D -> 2B + 2C + D + E

• A -> 2B

• A + B -> C + D

• 2A -> 2C + E

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

If this is the correct mechanism for the reaction, which is the rate-limiting step?

• 1

• 2

• 3

Tags

NGSS.HS-PS1-5

What is the overall reaction equation?

• A -> B + C

• D + B -> 2E

• A + D -> C + 2E

• A + D + B -> B + C + 2E

Tags

NGSS.HS-PS1-2

What are the intermediate(s) in this reaction?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5