Chemical and Physical Change
Flashcard
•
Chemistry, Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a Physical Change?
Back
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 change that results in the formation of new chemical substances, altering the chemical composition of the original substance.
3.
FLASHCARD QUESTION
Front
Example of a Physical Change: Ice melting into water.
Back
This is a physical change because the chemical composition of water (H2O) remains the same.
4.
FLASHCARD QUESTION
Front
Example of a Chemical Change: Iron rusting.
Back
This is a chemical change because it forms a new substance (iron oxide) from iron and oxygen.
5.
FLASHCARD QUESTION
Front
What is a Catalyst?
Back
A substance that increases the rate of a chemical reaction without being consumed in the process.
6.
FLASHCARD QUESTION
Front
What is a Reactant?
Back
A substance that undergoes a chemical change in a reaction.
7.
FLASHCARD QUESTION
Front
What is a Product?
Back
A substance that is formed as a result of a chemical reaction.
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