What is an atom?
Counting Atoms

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•
Chemistry
•
5th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An atom is the smallest unit of matter that retains the properties of an element.
2.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more different elements are chemically bonded together.
3.
FLASHCARD QUESTION
Front
How do you count the total number of atoms in a compound?
Back
Add the subscripts of all the elements in the chemical formula.
4.
FLASHCARD QUESTION
Front
What does the subscript in a chemical formula represent?
Back
The subscript indicates the number of atoms of the element in the compound.
5.
FLASHCARD QUESTION
Front
In the compound C2H8O, how many carbon atoms are there?
Back
There are 2 carbon atoms.
6.
FLASHCARD QUESTION
Front
In the compound C2H8O, how many hydrogen atoms are there?
Back
There are 8 hydrogen atoms.
7.
FLASHCARD QUESTION
Front
In the compound C2H8O, how many oxygen atoms are there?
Back
There is 1 oxygen atom.
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