How Many Atoms
Flashcard
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the chemical formula for water?
Back
H₂O
2.
FLASHCARD QUESTION
Front
How many atoms are in one molecule of H₂O?
Back
3 (2 Hydrogen + 1 Oxygen)
3.
FLASHCARD QUESTION
Front
What does the subscript in a chemical formula indicate?
Back
The number of atoms of the element in the molecule.
4.
FLASHCARD QUESTION
Front
How many Hydrogen atoms are in 4H₂O?
Back
8
5.
FLASHCARD QUESTION
Front
What is the total number of atoms in H₂C₃O₄N₅?
Back
10 (2 Hydrogen + 3 Carbon + 4 Oxygen + 5 Nitrogen)
6.
FLASHCARD QUESTION
Front
How many Nitrogen atoms are in H₂C₃O₄N₅?
Back
5
7.
FLASHCARD QUESTION
Front
What is the chemical formula for Aluminum oxide?
Back
Al₂O₃
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