Elements, Compounds & Mixtures
Flashcard
•
Chemistry
•
7th - 8th Grade
•
Practice Problem
•
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. It consists of only one type of atom.
2.
FLASHCARD QUESTION
Front
Can elements be broken down into simpler substances?
Back
No, elements cannot be broken down into simpler substances.
3.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more different types of atoms bond together chemically.
4.
FLASHCARD QUESTION
Front
What type of atoms make up a compound?
Back
A compound is made of different types of atoms.
5.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.
6.
FLASHCARD QUESTION
Front
Is salt (NaCl) an element or a compound?
Back
Salt (NaCl) is a compound.
7.
FLASHCARD QUESTION
Front
Which of the following represents an element: H2O, H2, NaCl, CaCO3?
Back
H2 represents an element.
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