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WorksheetsCh 8 Review (PreAP)
Total questions: 50
Worksheet time: 54mins
Name
Class
Date
1.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
2.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
3.
If electrons are shared unequally then the bond is....
a)
Non-polar covalent
b)
Ionic
c)
Non-polar ionic
d)
Polar covalent
4.
If electrons are shared equally then the bond is....
a)
Non-polar covalent
b)
Ionic
c)
Non-polar ionic
d)
Polar covalent
5.
Metals and nonmetals form which kind of bond?
a)
Polar covalent
b)
Ionic
c)
Non-polar covalent
d)
Metallic
6.
Which of the following is the correct Lewis structure for CH2O?
a)
Option A
b)
Option B
c)
Option C
d)
Option D
7.
In the correct Lewis structure for CH4, how many unshared electron pairs surround the carbon?
a)
2
b)
8
c)
0
d)
4
8.
Which compound would have a high melting point?
a)
CaO
b)
CO2
c)
PI3
d)
SO3
9.
Which substance would be polar?
a)
O2
b)
HCl
c)
CO2
d)
CH4
10.
Which substance is nonpolar?
a)
water
b)
N2
c)
NH3
d)
HCl
11.
How many sigma bonds does this have?
a)
1
b)
2
c)
3
d)
4
12.
How many pi bonds does this have?
a)
1
b)
2
c)
3
d)
4
13.
How many sigma bonds does this have?
a)
1
b)
2
c)
3
d)
4
14.
Pi bonds are formed by
a)
side to side overlap of s orbitals
b)
end to end overlap of s orbitals
c)
side to side overlap of p orbitals
d)
end to end overlap of p orbitals
15.
How many pi bonds are there in a double bond?
a)
0
b)
1
c)
2
d)
3
16.
How many pi bonds are there in a single bond?
a)
0
b)
1
c)
2
d)
3
17.
A diatomic N2 molecule has...
a)
one sigma and one pi bond
b)
one sigma and two pi bonds
c)
two sigma bonds
d)
two sigma and one pi bond
18.
What is the structure of an ammonia (NH3) molecule?
a)
Tetrahedral
b)
Trigonal planar
c)
Trigonal pyramidal
d)
Octahedral
19.
SiCl4 has what shape?
a)
square planar
b)
square pyramidal
c)
tetrahedral
d)
octahedral
20.
VSEPR stands for ________ theory.
a)
Valence Structure of Electron Pyramids and Regression
b)
Varied Structures of Electrons Paired and Replaced
c)
Varied Shell Energy of Protons and Radiation
d)
Valence Shell Electron Pair Repulsion
21.
Is the following molecule polar or non-polar?
a)
non-polar
b)
polar
22.
Is the following molecule polar or non-polar?
a)
non-polar
b)
polar
23.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
24.
Phosphorous trichloride
a)
PCl3
b)
P3Cl
c)
P3Cl3
d)
PCL
25.
Bromine monoflouride
a)
Br1F1
b)
BrF
c)
Br2F
d)
BrF2
26.
Disulfur trioxide
a)
S3O2
b)
SO
c)
S2O3
d)
S2O
27.
P2O5
a)
Phosphorus Oxide
b)
Pentaphosphorus Dioxide
c)
Diphosphorous pentoxide
d)
Phosphoric Oxygen
28.
*
a)
trigonal pyramid
b)
linear
c)
bent
d)
angular
29.
*
a)
tetrahedral
b)
trigonal pyramid
c)
angular or bent
d)
trigonal plane
30.
*
a)
bent or angular
b)
trigonal pyramid
c)
linear
d)
tetrahedral
31.
Choose the correct shape for this molecule:
a)
Bent
b)
Linear
c)
Tetrahedral
d)
Trigonal pyramidal
32.
The molecule shown in the diagram can best be classified as a
a)
polar covalent molecule
b)
nonpolar covalent molecule
c)
ionic compound
d)
nonpolar ionic compound
33.
The polarity of a bond between two elements can be best determined by
a)
The difference in electronegativity between the elements
b)
The difference in first ionization energy between the elements
c)
The number of electrons shared in the bond
d)
The difference in atomic radius between the elements
34.
What is the formula for sulfuric acid?
a)
HSO3
b)
H2SO3
c)
H2SO4
d)
H3SO4
35.
What is the formula for hydrochloric acid?
a)
HCl
b)
HClO
c)
H3ClO3
d)
HClO3
36.
What is the formula for perchloric acid?
a)
H3ClO3
b)
H3ClO4
c)
HClO3
d)
HClO4
37.
hydrochloric acid
a)
HClO3
b)
HClO2
c)
HClO
d)
HCl
38.
nitrous acid
a)
H2NO3
b)
HNO3
c)
HNO2
d)
H2NO2
39.
bromic acid
a)
HBr
b)
H2Br
c)
HBrO3
d)
HBrO4
40.
What is the formula for Aluminum Phosphide?
a)
Al₃P₃
b)
AlP
c)
AlPO₄
d)
AlPO₃
41.
What is the formula for Calcium Hypochlorite
a)
Ca(ClO₃)₃
b)
Cu(ClO₂)₂
c)
Ca(ClO)₂
d)
Ca(ClO₂)₂
42.
What is the formula for Lead II Phosphate?
a)
Pb₃(PO₃)₂
b)
Pb₃(PO₄)₂
c)
Pb₂PO₄
d)
Pb₂P
43.
What is the formula for Acetic acid?
a)
HA
b)
H₃C₂O₂
c)
HC₂H₃O₂
d)
H₂CO₃
44.
potassium hydroxide
a)
KH
b)
KOH
c)
K2OH
d)
K(OH)2
45.
diphosphorus pentoxide
a)
P2O5
b)
PO5
c)
P5O2
d)
P2O6
46.
sodium nitride
a)
NaNO3
b)
NaN
c)
NaN3
d)
Na3N
47.
iron(II) oxide
a)
FeO
b)
FeO2
c)
Fe2O
d)
Fe2O2
48.
Lead (II) permanganate is written
a)
PbMNO4
b)
Pb2MnO4
c)
Pb4MnO2
d)
Pb(MnO4)2
49.
Silver Nitrate is written
a)
SiNO3
b)
AgNO3
c)
AuNO3
d)
SNO3
50.
Chromium (III) fluoride is written
a)
CrF3
b)
ChF3
c)
CF3
d)
CmF3
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