What is a physical change?
Physical and Chemical Changes

Flashcard
•
Chemistry
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.
2.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A chemical change is a process that involves the transformation of one or more substances into different substances, resulting in the formation of new chemical compounds.
3.
FLASHCARD QUESTION
Front
Can a physical change be reversed?
Back
Yes, physical changes can often be reversed, such as freezing and melting.
4.
FLASHCARD QUESTION
Front
Can a chemical change be reversed?
Back
Chemical changes are usually not reversible by simple physical means, as they create new substances.
5.
FLASHCARD QUESTION
Front
What is an example of a physical change?
Back
Melting ice, boiling water, and dissolving sugar in water are examples of physical changes.
6.
FLASHCARD QUESTION
Front
What is an example of a chemical change?
Back
Burning wood, rusting iron, and baking a cake are examples of chemical changes.
7.
FLASHCARD QUESTION
Front
What happens to the molecules during a physical change?
Back
During a physical change, the arrangement of molecules may change, but the molecules themselves remain the same.
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