
Understanding Catalysts and Their Role in Chemical Reactions
Interactive Video
•
Chemistry, Biology, Science
•
5th - 8th Grade
•
Hard

Lucas Foster
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of a catalyst in a chemical reaction?
To decrease the pressure of the reaction
To increase the temperature of the reaction
To speed up the reaction without being consumed
To change the products of the reaction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements about spontaneous human combustion is true?
It occurs due to high body temperature
It has never happened
It has been scientifically proven
It is a common phenomenon
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the 'hump' that molecules need to overcome in a chemical reaction?
The concentration limit
The energy barrier known as activation energy
The temperature threshold
The pressure point
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a catalyst affect the activation energy of a reaction?
It decreases the activation energy
It has no effect on activation energy
It increases the activation energy
It doubles the activation energy
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is used as a catalyst in the decomposition of hydrogen peroxide in the video?
Potato
Sodium chloride
Chicken liver
Potassium iodide
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the products of the decomposition of hydrogen peroxide?
Hydrogen and oxygen
Water and carbon dioxide
Oxygen and carbon dioxide
Water and oxygen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is liquid soap added during the decomposition of hydrogen peroxide?
To change the color of the solution
To neutralize the solution
To capture the oxygen bubbles
To increase the reaction rate
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