Elements, Compounds and Mixtures

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•
Science, Chemistry
•
6th - 8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an Element?
Back
An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include Copper (Cu) and Carbon (C).
2.
FLASHCARD QUESTION
Front
What is a Compound?
Back
A compound is a substance formed when two or more elements are chemically bonded together. An example is Chalk (CaCO3).
3.
FLASHCARD QUESTION
Front
What is a Mixture?
Back
A mixture is a combination of two or more substances that are not chemically bonded. Mixtures can be homogeneous or heterogeneous.
4.
FLASHCARD QUESTION
Front
What is a Homogeneous Mixture?
Back
A homogeneous mixture is a mixture in which the composition is uniform throughout. An example is saltwater.
5.
FLASHCARD QUESTION
Front
What is a Heterogeneous Mixture?
Back
A heterogeneous mixture is a mixture in which the composition is not uniform throughout. An example is oil and water.
6.
FLASHCARD QUESTION
Front
What is the difference between an Element and a Compound?
Back
An element is a single type of atom, while a compound consists of two or more different types of atoms chemically bonded together.
7.
FLASHCARD QUESTION
Front
What is an example of a Heterogeneous Mixture?
Back
An example of a heterogeneous mixture is rocks and sand.
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