Reaction Rates
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Smaller particle size allows for a _________ surface area to be exposed for the reaction.
Back
larger
2.
FLASHCARD QUESTION
Front
Exothermic reactions may release heat to the surroundings. True or False?
Back
True
3.
FLASHCARD QUESTION
Front
What is activation energy?
Back
The minimum amount of energy needed for a reaction to start.
4.
FLASHCARD QUESTION
Front
Explosions are reactions with very fast reaction rates. Explosions can happen when there is a large amount of powdered substance because of a large _________.
Back
surface area
5.
FLASHCARD QUESTION
Front
What letter represents the activation energy?
Back
A
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 a catalyst.
Back
A substance that increases the rate of a chemical reaction without being consumed.
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