Collision Theory Lesson

Poll

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Rates of Reaction and Collision Theory

Created by O'Sheen Dixon

Multiple Choice

Which is an example of a non renewable resource?

• wind

• solar

• oil

• hydro

Multiple Choice

Which option decribes what a synthetic product is.

• a product that is man made

• a product that is not man made

• I have no clue

Open Ended

Give THREE examples of renewable resources.

Multiple Choice

What is another word for finite resources?

• renewable

• non renewable

• nylon

• PVC

Lesson Objectives

1. Explain rates of reaction.

2. Discuss the factors that affects rates of reaction.

3. Describe the collision theory.

4. State at least TWO ways to increase the frequency of a collision.

5. Discuss how to increase the energy of collisions.

​– R Collier

“Success is the sum of small efforts, repeated.”

What is rate of reaction?

This refers to the speed at which the reactants are turned into a product. Not all reactions happen in the same time frame. Some reactions can be:

• slow for example rusting of an iron.

• moderate for example the reaction between magnesium and an acid

• fast for example explosions

Multiple Choice

What is rate of reaction?

• I don't know!

• The speed at which the reactants get turned into a product.

• This is how the reactants gets turned into a product.

Multiple Choice

What is an example of a reaction that happens quickly?

• fireworks

• rusting of iron

• magnesium reacting with an acid

Multiple Choice

Magnesium reaction with acids. Is an example of a reaction that happens at what speed?

• slow

• fast

• moderate

​Factors that affects the rate of reactions

Four main factors affect how quickly a reaction goes. Two factors are:

• temperature- the higher the temperature the faster the reaction

• concentration- the less concentrated the reactants are the slower the reaction

Multiple Choice

What is the function of the catalyst in a reaction?

• to lower the activation energy thus increasing the rate of reaction

• the increase the activation energy thus increasing the rate of reaction

• I was not listening

Multiple Choice

Does the enzyme gets used up in the reaction?

• Yes

• No

• Maybe

​Factors that affects the rate of reactions

Four main factors affect how quickly a reaction goes. Two factors are:

• surface area / particle size- the larger the surface area the faster the reaction

• catalyst- reaction with a catalyst is faster than without a catalyst

Collision Theory

Multiple Choice

For a reaction to take place the particle must....

• collide

• have enough energy

• both

Multiple Choice

The bonds always break in reactants

• true

• false

• both

Multiple Choice

The bonds always break in products

• true

• false

• both

Multiple Choice

To increase the rate of reaction, the frequency of collisions must be

• decreased

• increased

• neither of the above

Multiple Choice

To increase the rate of reaction, the energy of th particles must be

• decreased

• increased

• neither of the above

Drag and Drop

The theory explains that in order for a successful reaction to take place, the particles ​need to

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with enough ​

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. The minimum amount of energy needed for a reaction to take place is the ​

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. To increase the rate of reaction ​the ​

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of the collisions must be increased, as well as the amount of ​

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the particle have.

Drag these tiles and drop them in the correct blank above

collide

energy

activation energy

frequency