What is a catalyst?
Speed Up a Chemical Reaction

Flashcard
•
Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A substance that speeds up a chemical reaction without being consumed in the process.
2.
FLASHCARD QUESTION
Front
How does a catalyst speed up a reaction?
Back
By orienting the molecules correctly so they can interact more effectively.
3.
FLASHCARD QUESTION
Front
What are the two conditions necessary for a chemical reaction to occur?
Back
1. Collisions with the proper orientation. 2. Sufficient activation energy.
4.
FLASHCARD QUESTION
Front
What is activation energy?
Back
The minimum energy required for a chemical reaction to occur.
5.
FLASHCARD QUESTION
Front
What happens when you increase the temperature of a reaction?
Back
The particles move faster, increasing the chances of collisions and speeding up the reaction.
6.
FLASHCARD QUESTION
Front
What is the effect of decreasing the volume of a reaction container?
Back
It increases the concentration of reactants, leading to more frequent collisions.
7.
FLASHCARD QUESTION
Front
What is the relationship between concentration and reaction rate?
Back
Higher concentration of reactants generally leads to a faster reaction rate.
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