Factors Influencing Reaction Rates: Chem Reg
Flashcard
•
Chemistry
•
10th Grade
•
Hard
Jacqueline Bromley
FREE Resource
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14 questions
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1.
FLASHCARD QUESTION
Front
What is the BEST description of 'reaction rate'?
Back
amount of product formed per unit of time
2.
FLASHCARD QUESTION
Front
Which factors increase the rate of a reaction?
Back
Increasing temperature, increasing concentration, increasing surface area
3.
FLASHCARD QUESTION
Front
How does an increase in temperature affect the particles in a chemical reaction?
Back
Increases kinetic energy of particles so more collisions occur, so more successful collisions are likely.
4.
FLASHCARD QUESTION
Front
How does a catalyst increase the rate of reaction?
Back
It reduces the activation energy of the reaction.
5.
FLASHCARD QUESTION
Front
What increases the rate of reaction by lowering the activation energy?
Back
catalyst
6.
FLASHCARD QUESTION
Front
What is the main idea of collision theory?
Back
particles must collide in order to react
7.
FLASHCARD QUESTION
Front
Why aren't all collisions between particles 'successful' / cause a reaction?
Back
Not all the particles collide with enough energy and/or in the correct orientation.
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