Counting Atoms
Flashcard
•
Science
•
11th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the coefficient in a chemical formula represent?
Back
The coefficient represents the number of formula units of the compound.
2.
FLASHCARD QUESTION
Front
How many sulfur atoms are present in H₂SO₄?
Back
1 sulfur atom.
3.
FLASHCARD QUESTION
Front
How many lead (Pb) ions are in the compound 3Pb(NO₂)₂?
Back
3 lead (Pb) ions.
4.
FLASHCARD QUESTION
Front
Calculate the total number of atoms in 4N₂.
Back
8 total atoms.
5.
FLASHCARD QUESTION
Front
How many carbon atoms are in one formula unit of K₂CO₃?
Back
2 carbon atoms.
6.
FLASHCARD QUESTION
Front
What is the total number of atoms in the formula C₆H₁₂O₆?
Back
24 total atoms (6 C, 12 H, 6 O).
7.
FLASHCARD QUESTION
Front
Define a chemical formula.
Back
A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound.
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