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WorksheetsAP Chemistry Sem 1 Review
Total questions: 45
Worksheet time: 11hrs 15mins
Name
Class
Date
1.
Which of the following is a general characteristic of a nonmetal?
a)
Low Density
b)
Nonconductor of heat
c)
Brittle
d)
All of the above
2.
Which one of the following elements has the greatest ionization energy?
a)
Al
b)
Cl
c)
Br
d)
S
3.
Which of the following is true of an element in an excited state?
a)
It has emitted a photon and its energy has decreased
b)
It has emitted a photon and its energy has increased
c)
It has absorbed a photon and its energy has increased
d)
It has absorbed a neutron and its energy has increased
4.
How many electrons can occupy the n=4 shell (energy level)?
a)
8
b)
10
c)
18
d)
32
5.
How many electrons occupy the 5f subshell?
a)
2
b)
6
c)
10
d)
14
6.
63Cu is 69% of the naturally occurring isotope of Cu. If only one other isotope is present for natural copper, what is it?
a)
59Cu
b)
65Cu
c)
61Cu
d)
62Cu
7.
Consider an atom with the electron configuration 1s22s22p63s23p6. Which of the following is an accurate statement concerning this atom?
a)
This atom would probably be very reactive
b)
This element is diamagnetic
c)
This atom is in an excited state
d)
The atomic number Z = 11
8.
Which one of the following atoms is the largest?
a)
Rb
b)
Na
c)
Ca
d)
Te
9.
Which principle states that only two electrons can occupy an orbital?
a)
Pauli Exclusion Principle
b)
Hund's Rule
c)
Heisenberg's Uncertainty Principle
d)
Newton's Principle
10.
Which one of these molecules has a trigonal pyramidal molecular geometry?
a)
SO3
b)
NF3
c)
IF3
d)
BF3
11.
A single covalent bond is formed by how many electrons?
a)
1
b)
2
c)
3
d)
4
12.
Which of the following electron domain geometries has an sp2 hybridized central atom?
a)
Trigonal Pyramidal
b)
Tetrahedral
c)
Trigonal Bipyramidal
d)
Trigonal Planar
13.
Which molecular geometry tends to be nonpolar?
a)
Bent
b)
Trigonal Pyramidal
c)
Trigonal Bipyramidal
d)
Square Pyramidal
14.
What is the name for the force holding two atoms together in a chemical bond?
a)
Gravitational force
b)
Strong nuclear force
c)
Weak nuclear force
d)
Electrostatic force
15.
Which of the following molecules is polar?
a)
SO3
b)
SO2
c)
CO2
d)
CH4
16.
An alkaline earth metal is expected to have a _____ ionization energy and a _____ electron affinity.
a)
small; large
b)
small; small
c)
large; small
d)
large; large
17.
The bond energy of a carbon-carbon double bond, when compared to the energy of a carbon-carbon single bond, is
a)
twice the bond energy of a single bond
b)
greater in bond energy than a single bond but less than twice the bond energy
c)
less than the bond energy of a single bond
d)
equal in bond energy to a single bond
18.
A water spider is able to walk on the surface of water because
a)
hydrophilic bonds hold H2O molecules together
b)
H2O has strong covalent bonds within its molecules
c)
surface tension from the adhesive properties of H2O
d)
surface tension from the cohesive properties of H2O
19.
What is the molecular geometry of Cl2CO?
a)
Tetrahedral
b)
Trigonal Planar
c)
Trigonal Pyramidal
d)
Linear
20.
At what temperature is degrees Celsius equal to degrees Farenheit?
a)
0
b)
-20
c)
-40
d)
-60
21.
Which of the following compounds will have the lowest boiling point?
a)
CH4
b)
CHCl3
c)
CH3CH2OH
d)
NH3
22.
Which of the following compounds has the highest boiling point?
a)
CH3CH2CH3
b)
CH3CH2CH2CH3
c)
CH3CH3
d)
CH4
23.
190 torr is equal to how many atmospheres?
a)
0.19 atm
b)
0.25 atm
c)
0.30 atm
d)
1.9 atm
24.
Under which conditions does a real gas behave most nearly like an ideal gas?
a)
High Temperature and High Pressure
b)
High Temperature and Low Pressure
c)
Low Temperature and Low Pressure
d)
Low temperature and High Pressure
25.
At the molecular level, ideal gases:
a)
do not occupy space
b)
occupy space
c)
do not exhibit intramolecular forces
d)
exhibit intramolecular forces
26.
A 2.50 L sample of He gas has a pressure of 0.925 atm. What is the pressure of the gas if the volume is reduced to 0.350 L?
a)
6.61 atm
b)
0.661 atm
c)
0.130 atm
d)
0.946 atm
27.
A sample of air at 7.50 atm is heated from -53 oC to 167 oC, while the volume remains constant. What is the final pressure?
a)
30.0 atm
b)
6.15 atm
c)
15.3 atm
d)
3.75 atm
28.
Which of the following compounds does NOT exhibit hydrogen bonding?
a)
CH4
b)
HF
c)
NH3
d)
H2O
29.
In the van der Waals equation, a and b respectively represent
a)
volume of gas molecules and intermolecular forces
b)
Nonrandom movement and intermolecular forces between gas molecules
c)
Nonelastic collisions and volume of gas molecules
d)
intermolecular forces and volume of gas molecules
30.
If both the pressure and temperature of a gas are halved, the volume is
a)
halved
b)
doubled
c)
quadrupled
d)
the same
31.
According to the kinetic theory of gases, the average kinetic energy of the gas particles is directly proportional to
a)
Temperature
b)
Molar Mass
c)
Volume
d)
Pressure
32.
Which gas has the greatest density at STP?
a)
CO2
b)
O2
c)
N2
d)
NO
33.
Which of the following solid compounds is insoluble in water?
a)
barium sulfate
b)
barium hydroxide
c)
barium chloride
d)
barium chlorate
34.
Which of the following elements will form a covalent network solid?
a)
C
b)
O
c)
Mg
d)
S
35.
Coca-Cola is carbonated by injection with carbon dioxide gas. Under what conditions is carbon dioxide gas most soluble?
a)
high temperature, high pressure
b)
high temperature, low pressure
c)
low temperature, low pressure
d)
low temperature, high pressure
36.
Which substance listed below is the strongest oxidizing agent given the following spontaneous redox reaction?
Mg + Sn+2 --> Mg+2 + Sn
Mg + Sn+2 --> Mg+2 + Sn
a)
Mg+2
b)
Sn
c)
Mg
d)
Sn+2
37.
What is the oxidation number of Br in NaBrO3?
a)
-1
b)
+1
c)
+3
d)
+5
38.
Which of the following would be a weak electrolyte in a solution?
a)
HBr
b)
KCl
c)
KOH
d)
HC2H3O2
39.
When a substance loses electrons, it is _____. This substance is known as the _____ agent.
a)
reduced; reducing
b)
oxidized; reducing
c)
reduced; oxidizing
d)
oxidized; oxidizing
40.
Under acidic conditions, what is the coefficient in front of the Fe+2 once the reaction below is balanced?
Fe+2 + Cr2O7-2 --> Fe+3 + Cr+3
Fe+2 + Cr2O7-2 --> Fe+3 + Cr+3
a)
1
b)
2
c)
3
d)
6
41.
How would you detect the presence of C2H3O2-1 ions in solution?
a)
add sodium chloride
b)
add OH-
c)
add H+
d)
add silver nitrate
42.
What is the color of the lithium flame test?
a)
Pinkish red
b)
Green
c)
Blue
d)
Yellow
43.
Which ion has an orange flame test color?
a)
Copper (II)
b)
Potassium
c)
Lithium
d)
Calcium
44.
Which one of the following compounds is orange-red?
a)
iron (III) oxide
b)
calcium chloride
c)
potassium nitrate
d)
cobalt (III) oxide
45.
In an acidic solution redox, what does dichromate turn into after it oxidizes the other reactant?
a)
chromate
b)
chromium (II)
c)
chromium (III)
d)
manganese
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