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WorksheetsChemical Formulas DOL
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
Which of the following accurately describes the chemical formula of the molecule shown?
a)
3CH8O
b)
C3H7O
c)
C4H8O2
d)
C3H8O
2.
Which elements are in the formula shown?
a)
Cobalt only
b)
Carbon and Oxygen
c)
Copper only
d)
Carbon and Osmium
3.
How many elements are in an amino acid with the following formula:
C5H11NO2S
a)
5
b)
20
c)
18
d)
4
4.
Based on the diagrams, which compound should be identified as methane (CH4)?
a)
Molecule 1
b)
Molecule 3
c)
Molecule 4
d)
Molecule 6
5.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
6.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
7.
How many Nitrogen atoms are in (NH₄)₂CrO₄?
a)
1
b)
2
c)
8
d)
16
8.
Which of the following is a molecule of a compound?
a)
H2
b)
Cl2
c)
H2O
d)
F2
9.
What is the total number of atoms in this chemical formula?
H2O2
a)
2
b)
4
c)
6
d)
8
10.
How many hydrogen atoms are in this chemical formula?
3(NH₄)₂CrO₄
a)
4
b)
7
c)
12
d)
24
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