Review Elements, Compounds & Mixtures

Flashcard
•
Science
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an element?
Back
A pure substance that cannot be broken down into simpler substances by chemical means.
2.
FLASHCARD QUESTION
Front
What is a compound?
Back
Two or more different elements chemically joined together.
3.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A combination of two or more substances that are not chemically bonded.
4.
FLASHCARD QUESTION
Front
What is a homogeneous mixture?
Back
A mixture that has a uniform composition throughout, such as saltwater.
5.
FLASHCARD QUESTION
Front
What is a heterogeneous mixture?
Back
A mixture that has a non-uniform composition, such as a salad.
6.
FLASHCARD QUESTION
Front
What is the smallest unit of a compound?
Back
A molecule, which consists of two or more atoms bonded together.
7.
FLASHCARD QUESTION
Front
Can elements be broken down into simpler substances?
Back
No, elements cannot be broken down into simpler substances.
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