Kinetics Unit Practice

Kinetics Unit Practice

9th - 11th Grade

69 Qs

quiz-placeholder

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Kinetics Unit Practice

Kinetics Unit Practice

Assessment

Quiz

Chemistry

9th - 11th Grade

Hard

NGSS
HS-PS1-4, HS-PS1-5, HS-PS3-2

+3

Standards-aligned

Created by

Lowell Chapnick

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69 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The rate of a chemical reaction normally

increases as temperature decreases.

decreases when a catalyst is added.

increases as reactant concentration increases.

decreases as reactant concentration increases.

Tags

NGSS.HS-PS1-5

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Crushing a solid into a powder will increase reaction rate because:

the particles will collide with more energy

the orientation of colliding particles will be improved

the activation energy barrier will be lowered

the powdered form has more surface area

Tags

NGSS.HS-PS1-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A lump of ignited charcoal which is glowing in air burns more vigorously when lowered into a bottle of pure oxygen. This is due to an increase in

surface area

temperature

concentration

volume

Tags

NGSS.HS-PS1-5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What happens to a catalyst in a reaction?

It remains unchanged.

It is incorporated into the reactants.

It is incorporated into the products.

It evaporates.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which out of the following is NOT a factor that affects the rate of a reaction between a solid and liquid reactant?

temperature

concentration

surface area

volume

catalysts

Tags

NGSS.HS-PS1-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How does a catalyst work in speeding up a reaction?

by lowering the activation energy (minimum energy needed for the reaction to take place)

by giving the reactants more energy

by increasing the number of reactant particles

by increasing the temperature

Tags

NGSS.HS-PS1-5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why does a higher concentration increase the rate of reaction?

it increases the amount of reactants

it lowers the activation energy

it increases the energy of particle collisions

it increases the frequency of particle collisions

Tags

NGSS.HS-PS1-5

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