Reaction Rates

Reaction Rates

By Tiffany Newton

Multiple Choice

Is this reaction endothermic or exothermic?

• Endothermic

• Exothermic

• Neither

Multiple Choice

Which letter represents the potential energy of the reactants?

• A

• B

• C

• D

Multiple Choice

What does letter C represent?

• Energy of the reactants

• Energy of the products

• Activation energy

• $$\Delta\ H$$  

Multiple Choice

What is activation energy?

• The maximum amount of energy a bond can have

• The minimum amount of energy needed for a chemical reaction to take place

• The amount of energy released in a chemical reaction

• The energy stored in the products of a chemical reaction.

Multiple Choice

Which will react faster - powdered sugar or a sugar cube?

• Powdered sugar

• Sugar cube

• They will react in the same amount of time

Multiple Choice

Which glow stick was brightest?

• Room temperature

• Cold water

• Hot water

• They all had the same brightness.

Poll

Which glow stick do you think will stop glowing soonest?

• Room temperature

• Cold water

• Hot water

• They will run out at the same time

Multiple Choice

How does a catalyst increase the rate of a reaction?

• It lowers the activation energy

• I causes more molecules to be oriented correctly

• It makes the molecules move faster

• It reduces the temperature of the reaction

​Why is there a danger of explosions in places such as silos and coal mines where there are large quantities of powdered, combustible materials? 

​Example

​Exit Ticket...

Open Ended

What are 2 things required for a collision to be successful?

Open Ended

What 3 things can be changed to increase a reaction rate?

Open Ended

How does a catalyst increase a reaction rate?