What is a chemical change?
Chemical and Physical Changes

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Science
•
5th - 7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A chemical change occurs when two or more substances react to form one or more new substances.
2.
FLASHCARD QUESTION
Front
What is a physical change?
Back
A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.
3.
FLASHCARD QUESTION
Front
What is an example of a chemical change?
Back
An example of a chemical change is the reaction between vinegar and baking soda, which produces carbon dioxide gas.
4.
FLASHCARD QUESTION
Front
What is an example of a physical change?
Back
An example of a physical change is melting ice into water.
5.
FLASHCARD QUESTION
Front
What is a precipitate?
Back
A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.
6.
FLASHCARD QUESTION
Front
What happens to the chemical composition during a chemical change?
Back
The chemical composition of the substances involved changes, resulting in the formation of new substances.
7.
FLASHCARD QUESTION
Front
What happens to the chemical composition during a physical change?
Back
The chemical composition of the substance remains the same during a physical change.
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