Elements, Mixtures, and Compounds

Flashcard
•
Science
•
8th Grade
•
Hard
Wayground Content
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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. It consists of only one type of atom.
2.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more elements chemically bond together in a fixed ratio, resulting in a new substance with different properties.
3.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A mixture is a combination of two or more substances that are not chemically bonded. The individual components retain their own properties.
4.
FLASHCARD QUESTION
Front
What is the difference between an element and a compound?
Back
An element consists of only one type of atom, while a compound is made up of two or more different types of atoms chemically bonded together.
5.
FLASHCARD QUESTION
Front
Can a compound be separated into its components?
Back
No, a compound cannot be separated into its components by physical means; it requires a chemical reaction to break the bonds.
6.
FLASHCARD QUESTION
Front
What is a molecule?
Back
A molecule is the smallest unit of a chemical compound that retains its chemical properties, consisting of two or more atoms bonded together.
7.
FLASHCARD QUESTION
Front
What is the law of definite proportions?
Back
The law of definite proportions states that a chemical compound always contains the same proportion of elements by mass.
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