What is the law of conservation of mass?
Chemical and Physical Changes (3.2)

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•
Science
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Mass cannot be created or destroyed in a chemical reaction.
2.
FLASHCARD QUESTION
Front
Give an example of a chemical change. Options: Melting of ice, Mixing of salt and water, Burning of wood, Cutting a piece of paper
Back
Burning of wood
3.
FLASHCARD QUESTION
Front
What is a physical change?
Back
A physical change is a change in the form or state of matter without any change in its chemical composition.
4.
FLASHCARD QUESTION
Front
True or False: According to the law of conservation of mass, mass can be created or destroyed during a chemical reaction.
Back
False
5.
FLASHCARD QUESTION
Front
What happens to the mass of a substance during a physical change?
Back
The mass of a substance remains constant.
6.
FLASHCARD QUESTION
Front
Example of a physical change.
Back
Melting ice into water.
7.
FLASHCARD QUESTION
Front
What is the difference between a chemical change and a physical change?
Back
A chemical change involves a chemical reaction that results in the formation of new substances with different properties, while a physical change only involves a change in the physical properties of a substance.
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