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Worksheetscovalent compound
Total questions: 76
Worksheet time: 1hrs 18mins
Name
Class
Date
1.
What is the prefix for 1?
a)
mono
b)
di
c)
tri
d)
tetra
2.
Name CCl4
a)
carbon carbon tetraiodide
b)
carbon tetrachloride
c)
monocarbon tetrachloride
d)
water
3.
Name BCl3
a)
boron chloride
b)
boron (III) chloride
c)
boron trichloride
d)
boron chlorine
4.
Give the formula for oxygen dichloride
a)
OCl2
b)
O2Cl2
c)
OCl
d)
O2Cl
5.
When two atoms share electrons, a chemical bond is formed. This type of bond is called:
a)
covalent bond
b)
ionic bond
c)
crystal bond
d)
polyatomic bond
6.
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
7.
What type of compound consists of molecules that made of atoms that are covalently bonded?
a)
ionic
b)
crystal
c)
noncovalent
d)
molecular
8.
How many valence electrons does oxygen have?
a)
2
b)
3
c)
6
d)
4
9.
What is the correct formula for this molecule?
a)
NH
b)
N3H
c)
NH3
d)
NH4
10.
In covalent bonding, electrons are
a)
shared
b)
transferred
c)
wiped out
11.
Why do simple covalent molecules have low melting and boiling points?
a)
they have weak bonds between the atoms
b)
they have weak bonds between the molecules
c)
they have weak forces between their atoms
d)
they have weak forces between their molecules
12.
Which is NOT a giant covalent structure?
a)
Diamond
b)
Graphite
c)
C60
d)
Sodium chloride
13.
Diamond is strong and hard because...
a)
it is made up of carbon
b)
it is expensive
c)
it has 4 carbon bonds per atom
d)
it has 3 carbon bonds per atom
14.
Graphite is slippery and is used as a lubricant because...
a)
it is made of layers that do not slide over each other
b)
it is made of layers that slide over each other
c)
it has a low melting point so is slimey at room temperature
d)
it is used in pencils
15.
A molecule with a single covalent bond is ___.
a)
CO2
b)
Cl2
c)
CO
d)
N2
16.
Which is described as the force holding atoms together?
a)
formula unit
b)
cation
c)
lattice
d)
chemical bond
17.
Non-metals
a)
give electrons
b)
take electrons
c)
give or take electrons
d)
take or share electrons
18.
How many electrons should Carbon have around its Lewis dot model?
a)
1
b)
3
c)
4
d)
5
19.
How many electrons should Boron have around its Lewis dot model?
a)
1
b)
3
c)
5
d)
7
20.
What shape would this have?
a)
Trigonal planar
b)
Pyramidal
c)
Tetrahedral
d)
Bent
21.
Who could this be?
a)
CO2
b)
NH3
c)
H2S
d)
CH4
22.
Which acids start with the prefix hydro- ?
a)
Binary
b)
Oxyacids
23.
If you have an oxyacid and it contains an -ate polyatomic ion, then acid's ending will change to _____.
a)
-ic
b)
-ous
c)
-ite
24.
Is the formula for hydrosufuric acid, H2SO4? If not, what would the formula be?
a)
It is correct
b)
Is not. It should be HSO
c)
Is not. It should be HS
d)
Is not. It should be H2S
25.
bromic acid
a)
HBr
b)
H2Br
c)
HBrO3
d)
HBrO4
26.
carbonic acid
a)
H2CO3
b)
H2CrO4
c)
H2C2O4
d)
HCO3
27.
What is the ELECTRONIC geometry of the following?
a)
Linear
b)
Trigonal planar
c)
Tetrahedral
d)
Trigonal Bipyramidal
28.
What is the MOLECULAR geometry of the molecule?
a)
Linear
b)
Bent
c)
Trigonal Planar
d)
Seesaw
29.
What is the MOLECULAR geometry of the central oxygen?
a)
Linear
b)
Trigonal Planar
c)
Bent
d)
Tetrahedral
30.
What is the name of the CaF2?
a)
Calcium Fluoride
b)
Calcium Difluoride
c)
Monocalcium Difluoride
d)
Calcium (II) Fluoride
31.
What is the chemical formula for Phosphorus Pentachloride?
a)
PCl
b)
PCl3
c)
PCl5
d)
P5Cl
32.
What is the best explanation of VSEPR theory?
a)
It explains the shapes that electrons make around atoms when they repel
b)
It explains how many electrons fit into an element's valent shell
c)
It explains why electrons pair up
d)
It explains why electrons repel each other
33.
Which is true of VSEPR theory?
a)
It explains the origins of the universe
b)
It describes different molecular shapes
c)
It is loosely based on the Norse myth of Woden
d)
It describes which orbital electrons will fill
34.
When metals bond with non-metals they form what type of bonds
a)
covalent
b)
ionic
c)
cooperative
d)
lewis
35.
How do the following two elements bond together?
Na1+ F1-
Na1+ F1-
a)
NaF
b)
NaF3
c)
Na3F
d)
Na1F2
36.
How do the following two elements bond together?
Cr3+ O2-
Cr3+ O2-
a)
CrO
b)
Cr3O2
c)
Cr2O3
d)
CrO3
37.
Fe2O3
a)
iron oxide
b)
iron oxygen
c)
iron II oxide
d)
iron III oxide
38.
What is the formula for manganese(III) oxide?
a)
MgO
b)
Mg2O3
c)
MnO
d)
Mn2O3
39.
If the electronegativity of H is 2.20 and of Cl is 3.55, which type of bond is formed when HCl is made?
>1.7 = ionic
0.5-1.7 = polar covalent
<0.5 = nonpolar covalent
>1.7 = ionic
0.5-1.7 = polar covalent
<0.5 = nonpolar covalent
a)
polar covalent
b)
covalent
c)
polar ionic
d)
ionic
40.
Which category of elements have the property of being malleable and ductile?
a)
gases
b)
metals
c)
metalloids
d)
nonmetals
41.
Ionic bonds _____ dissolve in polar solvents.
a)
will
b)
will not
c)
might
d)
I don't know
42.
Which of the following is NOT a characteristic of IONIC COMPOUNDS?
a)
High melting point
b)
Conducts electricity
c)
Strong bonds
d)
Low boiling points
43.
Which of the following is an example of a COVALENT COMPOUND?
a)
H2S
b)
KI
c)
CaCl2
d)
MgO
44.
Covalent bonds are formed by sharing an electron from a _______ to a ________.
a)
Metal to a metalloid
b)
Metalloid to a nonmetal
c)
Nonmetal to a nonmetal
d)
Metal to a nonmetal
45.
Water is polar and oil is nonpolar. What happens when the two liquids are poured into the same container?
a)
both liquids become nonpolar
b)
a gas is produced
c)
the liquids mix well
d)
the liquids do not mix well
46.
What are the most important intermolecular forces found between water molecules?
a)
hydrogen bonding
b)
dipole-dipole forces
c)
London dispersion forces
d)
ion-dipole forces
47.
In this Lewis structure, the symbol above F means...
a)
electrons are being transferred to Fluorine
b)
electrons are less attracted to F than H
c)
electrons are more attracted to F than H
d)
Fluorine has formed a cation
48.
This is an example of a __________ bond.
a)
non-polar covalent
b)
polar covalent
c)
ionic
d)
metallic
49.
What is a repeating three-dimensional pattern that forms when ions bond called?
a)
Crystal Lattice
b)
Crystal Lettuce
c)
Crystal Configuration
d)
Quartz
50.
How many resonance structures for NO3- ion?
a)
1
b)
2
c)
3
d)
4
51.
Will this molecule be polar or nonpolar? CCl4
a)
polar
b)
nonpolar
52.
What geometry will this molecular structure have?: H2S
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
53.
Will this molecule be polar or nonpolar? H2S
a)
polar
b)
nonpolar
54.
What geometry will this molecular structure have?: CS2
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
55.
Will this molecule be polar or nonpolar? CH4
a)
polar
b)
nonpolar
56.
In a polar covalent bond, electrons are shared ___________.
a)
equally
b)
unequally
c)
between non-metals with similar electronegativities
d)
between a metal and a non-metal
57.
Which molecule contains bonds of GREATER polarity?
a)
H2O
b)
OF2
58.
A bond with a partially negative end and a partially positive end is:
a)
ionic
b)
polar
c)
non-polar
d)
isometric
59.
Write the correct name for PN.
a)
monophosphorus nitride
b)
phosphorus mononitrogen
c)
phosphorus mononitride
d)
monophosphorus mononitride
60.
Write the correct name for BS3
a)
boron sulfide
b)
monoboron trisulfide
c)
boron(III) sulfide
d)
boron trisulfide
61.
Write the correct name for P2O5.
a)
diphosphorus tetr(a)oxide
b)
phosphorus(II) oxide(V)
c)
diphosphorus pent(a)oxide
d)
phosphorus pent(a)oxide
62.
Write the correct name for OS.
a)
oxygen monosulfide
b)
monooxygen sulfide
c)
oxygen sulfide
d)
oxygen sulfate
63.
Write the correct name for SO3.
a)
sulfurous oxide
b)
sulfite
c)
monosulfur trioxide
d)
sulfur trioxide
64.
Write the correct formula for nitrogen tribromide.
a)
NB3
b)
N3Br
c)
N(Br)3
d)
NBr3
65.
Write the correct formula for phosphorus pentafluoride.
a)
P5F5
b)
PF5
c)
P5F
d)
P(V)F
66.
Name CCl4
a)
carbon carbon tetraiodide
b)
carbon tetrachloride
c)
monocarbon tetrachloride
d)
water
67.
Name BCl3
a)
boron chloride
b)
boron (III) chloride
c)
boron trichloride
d)
boron chlorine
68.
Cr3N
a)
chromium nitride
b)
chromium (I) nitride
c)
chromium (II) nitride
d)
chromium (III) nitride
69.
chromium (III) nitrate
a)
Cr3N2
b)
Cr2N
c)
Cr2NO3
d)
Cr(NO3)3
70.
calcium oxide
a)
Ca2O2
b)
Ca2O
c)
CaO
d)
CaO2
71.
Lithium fluoride
a)
LiF
b)
LiF2
c)
Li2F
d)
Li2F3
72.
FeSO3
a)
iron (I) sulfate
b)
iron sulfite
c)
iron (III) sulfite
d)
iron (II) sulfite
73.
carbon monoxide
a)
CO
b)
CO2
c)
C2O
d)
COH
74.
P2O5
a)
phosphorus oxide
b)
phosphorus (II) oxide
c)
diphosphorus pentoxide
d)
phosphorus pentoxide
75.
What is the correct name for the compound Al2S3?
a)
Aluminum sulfide
b)
Dialuminum trisulfide
c)
Trisulfur dialuminide
d)
Aluminum sulfur
76.
What is the correct name for the compound N2O?
a)
Dinitrogen monoxide
b)
Dinitrogen oxide
c)
Nitrogen oxide
d)
Nitrogen dioxide
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