Rates of Reaction Basics Chapter 18.1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Activation Energy | the amount of energy needed in order for particles to react when they collide.
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| 2 things that affect reaction rate | frequency of collisions
amount of energy with which they collide
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| 5 things that affect frequency of collisions and the amount energy in a reaction | temperature, pressure, surface area, concentration, catalyst
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| As a reaction progresses the rate decreases because why? | The reactants are getting used up and the products being produced are interfering with the collisions
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| In order for a reaction to take place, the particles must ________________ with each other. | collide
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| What does a catalyst do that changes the reaction rate? | It lowers the activation energy
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| What are some examples of how catalysts are used in industry? | Catalytic converter, margarine production, laundry detergent
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| Is a catalyst an active reactant in a reaction? | No, it remains unchanged
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| If the temperature is raised the reaction rate will ________. | Increase
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| If the pressure is decreased the reaction rate will ______. | decrease
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| As a reaction takes place, the reactants are getting used up and the products being produced are interfering with the collisions, what does this mean for the reaction rate? | It will slow down and eventually stop when the product is at 100%.
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| What did the breathe fire lab demonstrate? | That increased surface area increases the reaction rate.
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| What did the water to oil lab demonstrate? | That some reactions can seemingly take place in an instant
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| What did the elephant toothpaste lab demonstrate? | The use of a catalyst can increase the reaction rate greatly and can produce heat. (Exothermic)
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