Reaction Rates and Activation Energy Drill

Flashcard
•
Chemistry
•
11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What happens to reaction rate if surface area is decreased?
Back
It decreases.
2.
FLASHCARD QUESTION
Front
___ are the elements and compounds that are created by a reaction.
Back
Products.
3.
FLASHCARD QUESTION
Front
The energy needed to start a reaction is called the
Back
Activation energy.
4.
FLASHCARD QUESTION
Front
What makes an effective collision?
Back
When molecules collide with proper orientation and enough kinetic energy.
5.
FLASHCARD QUESTION
Front
A catalyst is an enzyme that
Back
Speeds up the rate of a reaction and reduces the amount of energy needed for a reaction to start.
6.
FLASHCARD QUESTION
Front
What is the effect of temperature on reaction rates?
Back
Increasing temperature generally increases reaction rates.
7.
FLASHCARD QUESTION
Front
Define 'reactants'.
Back
Reactants are the starting materials in a chemical reaction.
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