Counting Atoms
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Chemistry
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9th - 12th Grade
•
Medium
Standards-aligned
Danielle Larsen
Used 881+ times
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6 Slides • 10 Questions
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Counting Atoms
Unit 5 Section 1
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Coefficient vs Subscript
Coefficient: Numbers in front of a formula which gives the total number of compounds.
Subscripts: The small number to the bottom right of an element, which tells the number of atoms of the element immediately before it.
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Multiple Choice
What is the Coefficient?
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Multiple Choice
What is the subscript of Nitrogen?
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Multiple Choice
How many Carbon are in the compound?
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Multiple Choice
How many Bromine atoms are there in the compound?
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Multiple Choice
How many Phosphorous atoms are there in the compound?
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Counting Atoms: Formulas with parenthesis
The subscript on the outside of the parenthesis applies to everything within the parenthesis.
Multiple any subscript on the inside of the parenthesis by the subscript outside the parenthesis
multiply all numbers by the coefficient for a total number of atoms
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Multiple Choice
How many Hydrogen atoms are in the molecule?
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Multiple Choice
How many Strontium atoms are in the compound?
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Multiple Choice
How many atoms of oxygen are in the compound?
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Multiple Choice
How many Phosphorous atoms are in the molecule?
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Multiple Choice
How many Oxygen atoms are in the compound?
Counting Atoms
Unit 5 Section 1
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