

Mass Conservation in Closed and Open Systems
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main objective of the video tutorial?
To discuss the law of conservation of momentum
To explore the concept of mass creation
To understand the law of conservation of mass
To learn about the law of conservation of energy
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a closed system, what happens to the total mass?
It increases
It decreases
It fluctuates
It remains constant
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the total mass calculated in a closed system?
By dividing the initial mass by the final mass
By subtracting the initial mass from the final mass
By multiplying the initial mass by the final mass
By adding up all the masses
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was observed in the lab scenario involving steel wool?
Mass increased significantly
Mass was conserved with tiny changes
Mass was not conserved
Mass decreased significantly
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was a common observation in the lab scenarios of melting ice and dissolving sugar?
Mass remained constant
Mass fluctuated
Mass decreased
Mass increased
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the result of the lab scenario involving forming a precipitate?
Mass increased
Mass remained constant
Mass fluctuated
Mass decreased
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the burning steel wool experiment, why did the mass appear to increase?
Mass was lost to the air
Mass was gained from the air
Mass was destroyed
Mass was created
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