What is a catalyst?

Catalysts in Chemistry

Interactive Video
•
Chemistry, Science
•
7th - 10th Grade
•
Medium

Amelia Wright
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A substance that slows down a chemical reaction
A substance that speeds up a chemical reaction without being consumed
A substance that changes the color of a reaction
A substance that increases the mass of the reactants
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a catalyst affect the activation energy of a reaction?
It increases the activation energy
It has no effect on the activation energy
It decreases the activation energy
It doubles the activation energy
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do more fruitful collisions occur in the presence of a catalyst?
Because the pressure is increased
Because the volume is reduced
Because the activation energy is lower
Because the temperature is higher
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which type of reactions are catalysts commonly used in manufacturing?
Reversible reactions
Neutral reactions
Exothermic reactions
Endothermic reactions
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of iron in the Haber process?
It acts as a solvent
It acts as a product
It acts as a catalyst
It acts as a reactant
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the catalyst used in the Contact process?
Platinum
Iron
Potassium oxide
Vanadium pentoxide
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a catalytic converter in vehicles?
To improve vehicle speed
To reduce engine noise
To convert toxic gases into harmless products
To increase fuel efficiency
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