

Decoding Chemical Formulas and Their Structures
Interactive Video
•
Chemistry, Science, Biology
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of a chemical formula?
To show the historical discovery of a chemical element
To represent the types and numbers of atoms in a substance
To provide a detailed description of a chemical reaction
To illustrate the physical properties of a compound
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the chemical formula H2SO4, what does the subscript '2' indicate?
There are two sulfur atoms
There are two oxygen atoms
There are two hydrogen atoms
There are two molecules of sulfuric acid
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a chemical formula has no subscript after an element, what does it imply?
There are no atoms of that element
There is one atom of that element
There are two atoms of that element
The number of atoms is unknown
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the formula C7H5(NO2)3, what does the subscript '3' outside the parentheses indicate?
There are three oxygen atoms
There are three hydrogen atoms
There are three NO2 groups
There are three carbon atoms
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many nitrogen atoms are present in the formula C7H5(NO2)3?
Three
Two
Six
One
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the formula Mg3(PO4)2, how many phosphorus atoms are present?
One
Two
Three
Four
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the compound C2H4(OH)2, how many total hydrogen atoms are there?
Four
Seven
Five
Six
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