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Valid Reaction Mechanism

Authored by Charles Martinez

Chemistry

11th Grade

NGSS covered

Valid Reaction Mechanism
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9 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the catalyst in the following rate mechanism?

HBr
H2O
There is no catalyst

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

How many intermediates are in the following rate mechanism?

0
1
2
3

Tags

NGSS.HS-PS1-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which is the rate determining step?

1
2
3

Tags

NGSS.HS-PS1-5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the elementary steps  has the highest activation energy?

slow
fast

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which step does a catalyst affect?

slow 
fast

Tags

NGSS.HS-PS1-6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Reaction :


2A + B → C + D


is proposed to have reaction mechanism shown below :


A + B → AB + D (slow)

A + AB → C (fast)


the consistent rate equation with the reaction mechanism above is ____

rate = k [A]2 [B]

rate = k [A]2 [B]2

rate = k [A] [B]

rate = k [A] [B]2

Tags

NGSS.HS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The decomposition of nitrous oxide :


2N2O(g) → 2N2(g) + O2(g)


is believed to occur by two-step mechanism


N2O(g) → N2(g) + O(g) (slow)

N2O(g) + O(g) → N2(g) + O2(g) (fast)


the consistent rate equation based on the mechanism above is ____

rate = k [N2O]2

rate = k [N2O]

rate = k [N2O]2 [N2]

rate = k

Tags

NGSS.HS-PS1-5

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