What is a pure substance?
Elements, Compounds, Mixtures Review

Flashcard
•
Science
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Matter that always has exactly the same composition.
2.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A combination of two or more substances that are not chemically combined.
3.
FLASHCARD QUESTION
Front
What is a compound?
Back
A substance formed when two or more elements are chemically bonded together.
4.
FLASHCARD QUESTION
Front
What is an element?
Back
A pure substance that cannot be broken down into simpler substances by chemical means.
5.
FLASHCARD QUESTION
Front
What is a molecule?
Back
A group of two or more atoms bonded together.
6.
FLASHCARD QUESTION
Front
What does the coefficient in a chemical formula represent?
Back
The number of molecules of a substance in a chemical equation.
7.
FLASHCARD QUESTION
Front
What is the chemical formula for glucose?
Back
C6H12O6.
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