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WorksheetsMolecular Formulas
Total questions: 20
Worksheet time: 21mins
Name
Class
Date
1.
What is the best definition for subscript?
a)
The big number that tells you the number of molecules.
b)
The atomic number
c)
The little number that tells the number of atoms for each element.
2.
What is the best definition for coefficient?
a)
The big number that tells you the number of molecules.
b)
The little number that tells the number of atoms for each element.
c)
The atomic number
3.
What is the best definition for molecule?
a)
A molecule is formed when two or more atoms join together chemically.
b)
A molecule is made of only one atom.
4.
What is the symbol of the element: gold?
a)
Ag
b)
As
c)
Ap
d)
Au
5.
What is the best formula for this molecule?
a)
2H2O2
b)
6H2O2
c)
6H12O12
d)
6HO
6.
What is the best statement for the picture.
a)
The molecule has two carbon atoms and four hydrogen molecules.
b)
The molecule has two carbon atoms and four hydrogen atoms.
c)
The molecule has two carbon atoms.
7.
What is the best formula for this molecule?
a)
2H2O
b)
H3O
c)
H2O2
d)
H2O
8.
What is the best formula for this molecule?
a)
C3H4O3
b)
C3H4O
c)
C3H4O2
d)
C3H4O4
9.
What is the best formula for this molecule?
a)
C5HO4
b)
C5HO7
c)
C5HO8
10.
What is the best formula for these molecules?
a)
H2O
b)
H2O2
c)
3H2O
d)
4H2O
11.
What is the best formula for this molecule?
a)
C3H2
b)
C3H8
c)
CH
d)
CH8
12.
This image is a close up of a water molecule in a glass of water. How many water molecules do you see?
a)
Less than 2
b)
Between 4 and 8
c)
More than 12
13.
Choose the correct statement.
a)
Atoms are the biggest particle in a element.
b)
Atoms are the smallest particle in a molecule.
c)
Atom is the smallest particle in a element.
d)
Atoms are nice.
14.
What is the best statement for the picture.
a)
Propane has three carbon atoms and eight hydrogen atoms.
b)
Propane has three carbon atoms and six hydrogen molecules.
c)
Propane has three carbon atoms.
15.
Choose the correct statement for this glucose molecule.
a)
Glucose has six carbon molecules, 12 hydrogen molecules, and six oxygen molecules.
b)
Glucose has six carbon molecules, 12 hydrogen molecules, and six oxygen atoms.
c)
Glucose has six carbon atoms, 12 hydrogen atoms, and six oxygen atoms.
16.
What is the total number of atoms in this molecule?
a)
2
b)
4
c)
1
d)
6
17.
What is the total number of atoms in this molecule?
a)
11
b)
3
c)
8
d)
10
18.
What is the total number of atoms in this molecule?
a)
10
b)
5
c)
15
d)
20
19.
What is the total number of atoms in this molecule?
a)
8
b)
4
c)
2
d)
6
20.
What is the total number of atoms in this molecule?
a)
12
b)
6
c)
24
d)
20
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