Collision Theory and Reaction Rates

You add more bodies into a "mosh pit" to hope for more collisions.  You have increased-

• temperature

• concentration

• pressure

• catalyst

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NGSS.HS-PS1-5

This is the measure of how quickly the reactants in a reaction change into the products of the reaction.

• Reaction rate

• Reactants

• Product

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NGSS.HS-PS1-5

Theory used to predict the rates of chemical reactions, particularly gor gasses.

• The colision theory

• The collition theory

• The collision theory

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NGSS.HS-PS1-5

The rate of chemical reaction increases with increasing temperature

• Temperature

• Reaction rate

• Concentration

• Catalyst

• Particle size

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NGSS.HS-PS1-5

- Is a substance which when added to a reaction mixture, increases the rate of a chemical reactions but is not changed pr used after the reaction in finished.

• Catalyst

• Coefficient

• Concentration

• Particle size

• Temperature

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NGSS.HS-PS1-5

What is collision theory?

• Molecules must collide in the correct orientation with enough energy to bond.

• Molecules need enough energy to collide and react.

• Atoms constantly collide and react.

• The minimum energy needed for atoms to react

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NGSS.HS-PS1-5

If the reactant particles collide with less than the activation energy, the particles will be rebound, and no reaction will occur.

• True

• False

The collisions which bring about a chemical reaction are called: 

• Consistent collisions

•  Normal collisions 

• Effective collisions 

• None of the above

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NGSS.HS-PS1-5

More collisions correspond to a: 

• Faster reaction rate  

• Slower reaction rate

• Constant reaction rate 

• None of the above

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NGSS.HS-PS1-5

Which of the following increase the reaction rate?

• less surface area

• lower temperature

• increased concentration

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NGSS.HS-PS1-5