Elements and Compounds

Flashcard
•
Science
•
7th Grade
•
Hard
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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 fixed proportions.
3.
FLASHCARD QUESTION
Front
What is the chemical symbol for Carbon?
Back
C
4.
FLASHCARD QUESTION
Front
What is the chemical formula for table salt?
Back
NaCl
5.
FLASHCARD QUESTION
Front
What is the chemical formula for glucose?
Back
C6H12O6
6.
FLASHCARD QUESTION
Front
What is the chemical formula for water?
Back
H2O
7.
FLASHCARD QUESTION
Front
What does the subscript in a chemical formula indicate?
Back
The subscript indicates the number of atoms of the element in the molecule.
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