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Chapter 8 Covalent Bonding

Total questions: 100

Worksheet time: 1hrs 1mins

Name
Class
Date
1.

a chemical bond that results from the sharing of valence electrons

a)

covalent bond

b)

pi bond

c)

sigma bond

d)

coordinate covalent bond

2.

a model that uses electron-dot structures to show how electrons are arranged in molecules. Pairs of dots or lines represent bonding pairs

a)

resonance

b)

Lewis structure

c)

structural formula

d)

molecule

3.

a bond that is formed when parallel orbitals overlap to share electrons

a)

covalent bond

b)

sigma bond

c)

pi bond

d)

coordinate covalent bond

4.

a single covalent bond that is formed when an electron pair is shared by the direct overlap of bonding orbitals

a)

covalent bond

b)

pi bond

c)

coordinate covalent bond

d)

sigma bond

5.

condition that occurs when more than one valid Lewis structure exists for the same molecule

a)

structural formula

b)

resonance

c)

VSPER model

d)

molecule

6.

forms when one atom donates a pair of electrons to be shared with an atom or ion that needs two electrons to become stable

a)

coordinate covalent bond

b)

covalent bond

c)

polar covalent bond

d)

sigma bond

7.

a molecular model that uses symbols and bonds to show relative positions of atoms; can be predicted for many molecules by drawing the Lewis structure

a)

hybridization

b)

molecule

c)

structural formula

d)

resonance

8.

a process in which atomic orbitals are mixed to form new, identical hybrid orbitals

a)

VSPER model

b)

molecule

c)

lewis structure

d)

hybridization

9.

Valence Shell Electron Pair Repulsion model, which is based on an arrangement that minimizes the repulsion of shared and unshared pairs of electrons around the central atom

a)

VSPER model

b)

resonanace

c)

lewis structure

d)

structural formula

10.

a type of bond that forms when electrons are not shared equally.

a)

coordinate covalent bond

b)

polar covalent bond

c)

covalent bond

d)

oxyacid

11.

a bond formed by the transfer of electrons from one atom to another

a)

ionic bond

b)

covalent bond

c)

hydrogen bond

d)

gorilla glue

12.

a neutral group of atoms joined together by covalent bonds

a)

molecule

b)

formula unit

c)

political party

d)

unshared pair

13.

a molecule consisting of two atoms

a)

diatomic molecule

b)

single covalent bond

c)

double covalent bond

d)

triple covalent bond

14.

a bond formed when two atoms share a pair of electrons

a)

diatomic molecule

b)

single covalent bond

c)

double covalent bond

d)

triple covalent bond

15.

a bond in which two atoms share two (or three) pairs of electrons

a)

diatomic molecule

b)

single covalent bond

c)

double (or triple) covalent bond

d)

polar bond

16.

a compound that is composed of molecules

a)

molecular compound

b)

ionic compound

c)

bonding orbital

d)

structural formula

17.

a pair of valence electrons that is not shared between atoms

a)

unshared pair

b)

molecular orbital

c)

double covalent bond

d)

polar covalent bond

18.

a molecular orbital that can be occupied by two electrons of a covalent bond

a)

bonding orbital

b)

s- orbital

c)

p- orbital

d)

d- orbital

19.

a bond angle of 109.5° that results when a central atom forms four bonds directed toward the center of a regular tetrahedron

a)

tetrahedral angle

b)

right angle

c)

acute angle

d)

tutankhamun angle

20.

a covalent bond in which electrons are shared equally by the two atoms

a)

nonpolar covalent bond

b)

polar covalent bond

c)

molecular bond

d)

ionic bond

21.

a molecule in which one side of the molecule is slightly negative and the opposite side is slightly positive

a)

polar molecule

b)

nonpolar molecule

c)

single covalent bond

d)

diatomic molecule

22.
What are the three types of strong chemical bonds?
a)
Metallic, Ionic and Covalent
b)
Metallic, Atomic and Electronic
c)
Ionic, Atomic and Nucelonic
d)
Covalent, Metallic and Electronic
23.
Which particles are involved in ionic bonding?
a)
Atoms which share delocalised electrons
b)
Atoms which share pairs of electrons
c)
Oppositely charged ions
24.
Which particles are involved in covalent bonding?
a)
Atoms which share delocalised electrons
b)
Atoms which share pairs of electrons
c)
Oppositely charged ions
25.
Which particles are involved in metallic bonding?
a)
Atoms which share delocalised electrons
b)
Atoms which share pairs of electrons
c)
Oppositely charged ions
26.
When does ionic bonding occur?
a)
In most non-metallic elements and in compounds of non-metals
b)
In compounds formed from metals combined with non-metals
c)
In metallic elements and alloys
27.
When does covalent bonding occur?
a)
In most non-metallic elements and in compounds of non-metals
b)
In compounds formed from metals combined with non-metals
c)
In metallic elements and alloys
28.
When does metallic bonding occur?
a)
In most non-metallic elements and in compounds of non-metals
b)
In compounds formed from metals combined with non-metals
c)
In metallic elements and alloys
29.
Which particles are transferred when a metal atom reacts with a non-metal atom?
a)
Protons
b)
Neutrons
c)
Electrons
30.
Which type of diagram can be used to represent the electron transfer during the formation of an ionic compound?
a)
Dot and Cross
b)
Sketch
c)
Dot and Line
d)
Cross and Spot
31.
Which atom in an ionic bond loses electrons to become positively charged?
a)
Metal
b)
Non-metal
32.
Which atom in an ionic bond gains electrons to become negatively charged?
a)
Metal
b)
Non-metal
33.
When atoms share pairs of electrons, which type of bond is formed?
a)
Ionic
b)
Covalent
c)
Metallic
34.
A metal in Group 2 will form an ion with what charge?
a)
2-
b)
2+
c)
1-
d)
1+
35.
What would you name this molecule?
a)
SNa3
b)
H3O
c)
NaCl
d)
H2O
36.
If a you saw the following, K+; what does it tell you about the  the ion.
a)
it has lost one electron 
b)
it has lost one proton 
c)
it has lost two electrons 
d)
it is a negative ion 
37.
What does a sodium atom become when it loses its only valence electron?
a)
sodium compound
b)
sodium atom
c)
ionic compound
d)
sodium ion
38.
The desire for an element to have 8 atoms around it is called 
a)
Octet Rule
b)
Resonance
c)
Ionization energy
d)
Electronegativity
39.
How many Valence Electrons are on Oxygen
a)
2
b)
7
c)
6
d)
1
40.
Which of the following is a Diatomic Molecule 
a)
K2
b)
C2
c)
S2
d)
N2
41.
What is the name of this Compound
a)
P2O5
b)
Phosphorous PentaOxide
c)
Diphosphorous pentaoxide
d)
Phosphourous Oxide
42.
What is the formula for this Compound
a)
PCl
b)
PCL5
c)
PCl5
d)
Phosphorous Penta Chloride
43.
What is the name of this Molecule shape
a)
Tetrahedral
b)
Trigonal Pyramidal 
c)
Trigonal bipyramidal
d)
Bent
44.
Which of these would be covalently bonded
a)
Fr and K
b)
Sc and O 
c)
F and Cl
d)
He and Pt
45.
Is Hydrogen considered a metal or a non-metal?
a)
Metal
b)
Non-metal
46.

Which of the following is the best representation of a molecule of fluorine (F2)?

a)

A

b)

B

c)

C

d)

D

47.
What is a diatomic element?
a)
a metal bonded with a nonmetal
b)
2 or more nonmetals bonded together
c)
2 or more metals bonded together
d)
2 atoms of the same element bonded together
48.
How many electrons are shared in a double bond?
a)
2
b)
4
c)
6
d)
8
49.

Since covalent compounds do not have free charges, they are

a)

good conductors

b)

poor conductors

c)

ionic

d)

metallic

50.
Most covalent compounds are do not exist in which state?
a)
solid
b)
liquid
c)
gas
51.

Which formula is for phosphorus trichloride?

a)

KCl3

b)

PCl3

c)

K3Cl

d)

P3Cl

52.

Silicon dioxide is the compound in sand. What is its formula?

a)

SO2

b)

NaO2

c)

SiO2

d)

SiO

53.
The chemical formula of sulfur hexabromide is
a)
SBr₆
b)
S₆Br
c)
S(VI)Br
d)
S6Br
54.

What is the formula for diphosphorus pentoxide?

a)

P2O5

b)

PO5

c)

P5O2

d)

P2O6

55.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
56.
Which of the following is NOT an ionic compound:
a)
CaO
b)
NaOH
c)
BaCl2
d)
Br2
57.
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
58.

Equal sharing of electrons

a)

nonpolar

b)

polar

59.

Unequal sharing of electrons

a)

nonpolar

b)

polar

60.

________________________ are the strongest intermolecular forces of attraction for covalent compounds.

a)

Dipole- Dipole

b)

Van Der Waals forces

c)

Hydrogen Bonds

61.
Intermolecular forces are the forces
a)
within molecules
b)
between molecules
62.
In general, substances with stronger intermolecular forces have ________ boiling points than those with weaker forces
a)
Higher
b)
Lower
c)
The same
63.

Which of the following bonds is nonpolar?

a)

H-H

b)

H-Cl

c)

H-O

d)

H-F

64.

What is the molecular geometry of the water molecule?

a)

bent

b)

trigonal planar

c)

pyramidal

d)

tetrahedral

65.

What is the reason why Noble gases are so stable?

a)

They have an even number of electrons

b)

They have no electrons

c)

They have a full outer shell of electrons

d)

They bond with other atoms

66.

How many electrons can be held in the first shell?

a)

1

b)

2

c)

4

d)

8

67.

Which of these is not a covalent molecule?

a)

MgO

b)

CO2

c)

HCl

d)

CH4

68.

Chlorine has 7 electrons in it's outer shell. How many covalent bonds does it need to make to complete it's outer shell electrons?

a)

1

b)

2

c)

3

d)

4

69.

Oxygen has 6 electrons in it's outer shell. How many covalent bonds does it need to make to complete it's outer shell electrons?

a)

1

b)

2

c)

3

d)

4

70.

Carbon has 4 electrons in it's outer shell. How many covalent bonds does it need to make to complete it's outer shell electrons?

a)

1

b)

2

c)

3

d)

4

71.

How many ATOMS are in one molecule of CH4?

a)

2

b)

4

c)

5

d)

3

72.

What is the correct formula for this molecule?

a)

CH

b)

C1H4

c)

CH4

d)

C4H

73.

What is the correct formula for this molecule?

a)

CH

b)

C1H4

c)

CH4

d)

C4H

74.
Phosphorous trichloride
a)
PCl3
b)
P3Cl
c)
P3Cl3
d)
PCL
75.
Carbon dioxide
a)
C2O2
b)
C20
c)
CO
d)
CO2
76.
Bromine monoflouride
a)
Br1F1
b)
BrF
c)
Br2F
d)
BrF2
77.
Disulfur trioxide
a)
S3O2
b)
SO
c)
S2O3
d)
S2O
78.
Name the following compound:
  BF3
a)
boron fluoride
b)
boron difluoride
c)
monoboron trifluoride
d)
boron trifluoride
79.
Which of these is covalent?
a)
NaCl
b)
Pb(NO3)2
c)
CO2
d)
AlCl3
80.
Which molecule would have this shape?
a)
BF3
b)
CH4
c)
PCl5
d)
CO2
81.
What molecule could this be? 
a)
BF3
b)
CH4
c)
H2O
d)
CO2
82.
Which of these has a linear molecular shape?
a)
SCl2
b)
SiH4
c)
NH3
d)
O2
83.
Hydrogen bonding occurs between 
a)
Hydrogen and zinc
b)
Hydrogen and oxygen
c)
Hydrogen and lithium
d)
Hydrogen and helium
84.
Substances that cannot dissolve in water are
a)
polar
b)
nonpolar
c)
ionic
d)
hydrogen
85.

Nonmetals on the right side of the periodic table have ____ ionization energies.

a)

low

b)

weak

c)

high

d)

strong

86.

What is a diatomic molecule?

a)

Two atoms that are the same and share one or more electrons.

b)

Two atoms that share a different valence electron.

c)

Two atoms that share protons.

d)

Two ions that share a completed outer energy level.

87.

In the polar covalent molecule of hydrogen chloride (HCl) - the chlorine atom has

a)

a lesser pull on electrons and therefore a positive charge.

b)

has a greater pull and therefore a negative charge.

c)

has no effect on charge because it is neutral.

d)

a lesser effect on valence electrons.

88.

Attractions between polar molecules are weaker than attractions between nonpolar molecules.

a)

True

b)

False

89.

Which of these elements do not bond to form molecules?

a)

helium

b)

chlorine

c)

oxygen

d)

neon

90.

What is the geometry of this molecule?

a)

linear

b)

trigonal planar

c)

trigonal pyramid

d)

bent of angular

91.
How many valence electrons does nitrogen have?
a)
3
b)
2
c)
5
d)
1
92.
The prefix MONO means
a)
1
b)
2
c)
3
d)
4
93.

Potassium is a

a)

Metal

b)

Nonmetal

94.

Identify the following compound as ionic or covalent: SO2

a)

ionic

b)

covalent

95.

Identify the following compound as ionic or covalent: Ca(OH)2

a)

ionic

b)

covalent

96.

Which of the following -ide endings is WRONG?

a)

Phosphide

b)

Oxygenide

c)

Nitride

d)

Sulfide

97.
What region of the periodic table contains atoms that form covalent bonds?
a)
the left side
b)
the middle
c)
the right side
d)
top left
98.
What is the formula of Tricarbon Octafluoride?
a)
C3F8
b)
CF
c)
F3C8
d)
3C8F
99.
What is the formula of Silicon Tetrachloride?
a)
SiCl
b)
SiCl3
c)
SiCl4
d)
1Si4Cl
100.

What compound is diphosphorus monoxide?

a)

P2O

b)

PO2

c)

P2O5

d)

PO4

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