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Covalent Bonds Review

Total questions: 114

Worksheet time: 2hrs 54mins

Name
Class
Date
1.
How do covalent bonds form?
a)
Donating & receiving valence e- between atoms.
b)
Opposite slight charges attract each other between compounds.
c)
Scientists are still not sure how they form.
d)
Sharing valence e- between atoms.
2.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
3.
What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals Force
4.
Compared to ionic compounds, molecular compounds generally have...
a)
stronger chemical bonds
b)
poor conductivity
c)
a high melting point
d)
lower densities
5.
Covalent bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
6.
Ionic bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
7.
How are covalent bonds formed?
a)
Sharing of electrons
b)
Transfer of electrons
8.
Group numbers on the periodic table help us determine 
a)
The number of valence electrons
b)
Color of the elements
9.
H2O
a)
Ionic Bond
b)
Covalent Bond
c)
Both bonds
d)
Neither bond
10.
Dense and poor conductors
a)
Ionic Bonds
b)
Covalent Bonds
c)
Both bonds
d)
Neither bond
11.
Low melting point
a)
Ionic Bonds
b)
Covalent Bonds
c)
Both bonds
d)
Neither bond
12.

A neutral group of atoms held together by covalent bonds is a

a)

chemical formula

b)

molecular formula

c)

molecule

d)

polyatomic ion

13.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
14.

What is a covalent bond?

a)

A bond between atoms where electrons are shared.

b)

A bond between atoms where one atom gains an electron and another loses an electron.

c)

A bond where electrons dance in a 123 pattern.

d)

A bond between two atoms where they send each other special BFF messages.

15.

What part of the atom makes a bond?

a)

Electrons

b)

Protons

c)

Neutrons

d)

Any subatomic particle

16.

Octet rule states that ...

a)

elements need 8 electron

b)

the element that has atomic number 8 is stable

c)

there are 8 elements with the highest stability

d)

elements tend to have 8 electrons in their outermost shell because that makes them more stable

17.

Which of the following compounds is an example of a molecule with a triple covalent bond?

a)

Oxygen (O2)

b)

Nitrogen (N2)

c)

Water (H2O)

d)

Carbon dioxide (CO2)

18.

Which of the following statements is true about double covalent bonds?

a)

Double covalent bonds involve the sharing of one pair of electrons.

b)

Double covalent bonds are weaker than single covalent bonds.

c)

Double covalent bonds involve the sharing of two pairs of electrons.

d)

Double covalent bonds are formed by the transfer of electrons.

19.

What role do valence electrons play in covalent bonding?

a)

Valence electrons are only involved in ionic bonding.

b)

Valence electrons repel each other, preventing bonding.

c)

Valence electrons are shared between atoms to form covalent bonds.

d)

Valence electrons are lost during covalent bonding.

20.

How do covalent bonds differ from ionic bonds?

a)

Covalent bonds involve metallic elements, while ionic bonds involve nonmetals.

b)

Ionic bonds share electrons; covalent bonds transfer electrons.

c)

Covalent bonds share electrons; ionic bonds transfer electrons.

d)

Covalent bonds are stronger than ionic bonds.

21.

What is the difference between a single and a double covalent bond?

a)

A single bond shares one pair of electrons; a double bond shares two pairs.

b)

A single bond shares two pairs of electrons; a double bond shares one pair.

c)

A single bond is stronger than a double bond.

d)

A single bond involves only one atom, while a double bond involves two.

22.

Provide an example of a molecule that contains a covalent bond.

a)

Water (H2O)

b)

Carbon Dioxide (CO2)

c)

Iron Oxide (Fe2O3)

d)

Sodium Chloride (NaCl)

23.

What is a covalent bond?

a)

A covalent bond involves the transfer of electrons between atoms.

b)

A covalent bond is formed by the attraction of oppositely charged ions.

c)

A covalent bond is a type of ionic bond.

d)

A covalent bond is a chemical bond formed by the sharing of electron pairs between atoms.

24.
In an electron dot diagram, two pairs of shared electrons represents a ...
a)
single bond
b)
double bond
c)
triple bond
d)
quadruple bond
25.
A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?
a)
1
1
b)
3
c)
4
d)
6
26.
The chemical bond formed when two atoms share electrons  is called a(an) IONIC bond. 
a)
True
b)
False
27.
Covalent bonds usually form when a nonmetal combines with a(an) METAL.
a)
True
b)
False
28.

Identify the type of bond: CO2

a)

ionic

b)

covalent

29.

Identify the type of bond: LiF

a)

ionic

b)

covalent

30.

Identify the type of bond: Ag2O

a)

ionic

b)

covalent

31.

Identify the bond: CO

a)

ionic

b)

covalent

32.

Identify the type of bond:K3PO4

a)

ionic

b)

covalent

33.

Identify the type of bond: AlBr3

a)

ionic

b)

covalent

c)

both

34.

Identify the type of bond: K2O

a)

ionic

b)

covalent

35.

Identify the type of bond: SO3

a)

ionic

b)

covalent

36.

Identify the type of bond: H2O

a)

Ionic

b)

Covalent

37.

Identify the type of bond: NaCl

a)

Ionic

b)

Covalent

38.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
39.
What is the correct structure for BF3?
a)
Option A.
b)
Option B. 
c)
Option C.
d)
Option D.
40.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
41.

H2O has how many lone pairs?

a)

0

b)

1

c)

2

d)

3

42.
What is a double bond?
a)
a bond between two atoms
b)
one pair of electrons shared between two atoms
c)
two pairs of electrons shared between two atoms
d)
James Bond's brother
43.
How many covalent bonds does carbon need to form in order to have a full octet?
a)
2
b)
3
c)
4
d)
5
44.

Which Lewis Dot Model drawing correctly shows an O2 molecule?

a)
b)
c)
d)
45.

Name this compound

SeH3

a)

triselenium trihydride

b)

Selenium hydride

c)

Trihydrogen monoselenide

d)

Selenium trihydride

46.

What type of bond is pictured?

a)

Ionic bond

b)

Single Covalent Bond

c)

Double Covalent Bond

d)

Triple Covalent Bond

47.

dichloride pentoxide

a)

Cl2O5

b)

ClO5

c)

Cl5O2

d)

Cl2O6

48.

The lines indicate ____________________.

a)

lone pairs

b)

bond pairs

49.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
50.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
51.
What is the name of C3Cl8 ?
a)
Carbon octachloride
b)
Tricarbon octachloride
c)
Carbon trichloride
d)
Octacarbon trichloride
52.
What is the chemical formula for Nitrogen triiodide?
a)
NI
b)
N3I
c)
NI3
d)
None of these
53.
What is the name of Br6F10 ?
a)
Bromium fluoride
b)
Hexabromine fluoride
c)
Bromium decafluoride
d)
none of the above
54.
What is the chemical formula for Tetraphosphorous Pentachloride ?
a)
4P5Cl
b)
PCl
c)
P4Cl5
d)
none of the above
55.
What is the name of CO
a)
Carbon oxide
b)
Carbon dioxide
c)
Carbon monoxide
d)
Carbon II oxide
56.
What is the chemical formula for Fluorine trisulfide ?
a)
S3F
b)
FS3
c)
FS
d)
none of the above
57.
What is the chemical formula for CP ?
a)
Carbon phosphide
b)
Monocarbon phosphide
c)
Carbon monophosphide
d)
none of the above
58.
diphosphorus pentoxide
a)
P2O5
b)
PO5
c)
P5O2
d)
P2O6
59.

Got it?

a)

yes

b)

no

60.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
61.
phosphorus trichloride
a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
62.
What's the formula for chlorine dioxide
a)
ClO2
b)
CLO
c)
ClO3
d)
HClO2
63.

Name the following covalent compound.

NO

a)

Mononitrogen Oxide

b)

Nitrogen monoxide

c)

Nitrogen Oxide

64.

Name N2O3

a)

Nitrogen Oxide

b)

Dinitrogen Trioxide

c)

Nitrogen Trioxide

65.

Match the following

a)

CF4

1.

Carbon Tetrafluoride

b)

CH4

2.

Carbon Tetrahydride

c)

SCl2

3.

Sulfur Dichloride

d)

NBr3

4.

Nitrogen TriBromide

e)

CO2

5.

Carbon Dioxide

66.

Hydrogen needs _____ electrons in its valence shell to be stable.

a)

4

b)

8

c)

2

d)

3

67.
phosphorus trichloride
a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
68.
silicon dioxide
a)
SO2
b)
NaO2
c)
SiO2
d)
SiO
69.
diphosphorus pentoxide
a)
P2O5
b)
PO5
c)
P5O2
d)
P2O6
70.
The chemical formula of carbon tetrachloride is
a)
CCl
b)
C₄Cl
c)
CCl₄
d)
C(IV)Cl
71.
What's the formula for chlorine dioxide
a)
ClO2
b)
CLO
c)
ClO3
d)
HClO2
72.

Which is the correct Lewis Dot Structure for NH3?

a)

b)

c)

73.
How do covalent bonds form?
a)
Donating & receiving valence e- between atoms.
b)
Opposite slight charges attract each other between compounds.
c)
Scientists are still not sure how they form.
d)
Sharing valence e- between atoms.
74.
Which of the following is the correct Lewis structure for the compound PBr3?
a)
structure A
b)
structure B
c)
structure C
d)
structure D
75.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
76.

Which Lewis Dot Model drawing correctly shows an O2 molecule?

a)

b)

c)

d)

77.
How many valence electrons does nitrogen have?
a)
3
b)

2

c)
5
d)
1
78.

Write the name for SiO2

(a)  

79.

Write the chemical formula for Phosphorus Mononitride

(a)  

80.

Write the chemical formula for Disulfur Trioxide

(a)  

81.
phosphorus trichloride
a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
82.
silicon dioxide
a)
SO2
b)
NaO2
c)
SiO2
d)
SiO
83.
diphosphorus pentoxide
a)
P2O5
b)
PO5
c)
P5O2
d)
P2O6
84.
SiCl4
a)
silicon tetrachloride
b)
silicon quadchloride
c)
monosilicon tetrachloride
d)
silicon chloride
85.
The chemical formula of sulfur hexabromide is
a)
SBr₆
b)
S₆Br
c)
S(VI)Br
d)
S6Br
86.
The chemical formula of carbon tetrachloride is
a)
CCl
b)
C₄Cl
c)
CCl₄
d)
C(IV)Cl
87.
The name of P₄S₁₀ is
a)
phosphorous sulfide
b)
phosphorus sulfide
c)
tetraphosphorus decasulfide
d)
phosphorus (X) sulfide
88.
The chemical formula of tetraphosphorus heptaoxide is
a)
F₄O₁₀
b)
P₄O7
c)
PO
d)
P₁₀O₄
89.
The chemical formula of dinitrogen textroxide is
a)
Ni₂O₄
b)
NiO
c)
N₂O₄
d)
NiO₂
90.
The name of SO₃ compound is
a)
sulfate
b)
sulfur oxide
c)
sulfur trioxide
d)
monosulfur trioxide
91.
What's the formula for chlorine dioxide
a)
ClO2
b)
CLO
c)
ClO3
d)
HClO2
92.
What is the formula for Hexaboron Monosilicide
a)
B6Si
b)
BSi
c)
BSi6
d)
B6Si6
93.
What is the OFFICIAL name for H2O
a)
Hydrogen Oxide
b)
Oxygen Dinitride
c)
Agua
d)
Dihydrogen Monoxide
94.
BrO3
a)
bromine oxide
b)
monobromine trioxide
c)
bromine trioxide
d)
bromine (III) oxide
95.
What is the formula for Tricarbon Octahydride?
a)
Ca3O
b)
C2H8
c)
C3H8
d)
Ca3H8
96.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
97.
What is the correct chemical formula for Nitrogen Triiodide?
a)
NI3
b)
N3I3
c)
NOI
d)
NeI3
98.
A binary covalent bond exists between
a)
2 metals
b)
1 metal and 1 nonmetal
c)
2 nonmetals
d)
Any 2 elements
99.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
100.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
101.
What is the name of C3Cl8 ?
a)
Carbon octachloride
b)
Tricarbon octachloride
c)
Carbon trichloride
d)
Octacarbon trichloride
102.
What is the name of CO
a)
Carbon oxide
b)
Carbon dioxide
c)
Carbon monoxide
d)
Carbon II oxide
103.
What is the chemical formula for Fluorine trisulfide ?
a)
S3F
b)
FS3
c)
FS
d)
none of the above
104.
What is the chemical formula for CP ?
a)
Carbon phosphide
b)
Monocarbon phosphide
c)
Carbon monophosphide
d)
none of the above
105.
phosphorus trichloride
a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
106.
SiCl4
a)
silicon tetrachloride
b)
silicon quadchloride
c)
monosilicon tetrachloride
d)
silicon chloride
107.

P₄S₁₀

a)

tetrapotassium decasulfide

b)

phosphorus decasulfide

c)

tetraphosphorus decasulfide

d)

phosphorus (X) sulfide

108.

SO₃

a)

sulfate

b)

sulfur oxide

c)

sulfur trioxide

d)

monosulfur trioxide

109.

tetraphosphorus heptoxide

a)

K₄O₁₀

b)

P₄O7

c)

KO

d)

P₁₀O₄

110.

dinitrogen pentoxide

a)

N2O5

b)

NO5

c)

N5O2

d)

N2O6

111.

N2O3

a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
112.

C3Cl8 

a)
Carbon octachloride
b)
Tricarbon octachloride
c)
Carbon trichloride
d)
Octacarbon trichloride
113.
SiCl6
a)
Monosilicon hexachloride
b)
Silicon hexachloride
c)
Silicon heptachloride
d)
Monosilicon heptachloride
114.
Tribromine nonoxide
a)
Br3O9
b)
Br3O10
c)
Br3O6
d)
Br3O4

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