Name: 
 

2004 Chemistry



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

If a student needed to obtain 8.0 mL of
a liquid for an experiment, the
appropriate piece of laboratory
equipment to use would be a —

a.
50 mL beaker
c.
50 mL flask
b.
1.0 mL pipet
d.
10.0 mL graduated cylinder
 

 2. 

How many grams of sodium chloride
are required to prepare 500.0 mL of a
0.100 M solution?

a.
1.46 g
c.
29.3 g
b.
2.93 g
d.
58.5 g
 

 3. 

Which of the following best describes
why an experiment should be
repeated?

a.
To organize the data
c.
To include another variable
b.
To produce a variety of results
d.
To verify the observed results
 

 4. 

Which of these is the general formula
for a double-replacement reaction?

a.
mc004-1.jpg
c.
mc004-3.jpg
b.
mc004-2.jpg
d.
mc004-4.jpg
 

 5. 


mc005-1.jpg
a.
mc005-2.jpg
c.
mc005-4.jpg
b.
mc005-3.jpg
d.
mc005-5.jpg
 

 6. 

Which of the following orbital
diagrams is incorrect because it
violates Hund’s rule?

a.
mc006-1.jpg
c.
mc006-3.jpg
b.
mc006-2.jpg
d.
mc006-4.jpg
 

 7. 


mc007-1.jpg
a.
mc007-2.jpg
c.
mc007-4.jpg
b.
mc007-3.jpg
d.
mc007-5.jpg
 

 8. 


mc008-1.jpg
a.
mc008-2.jpg
c.
mc008-4.jpg
b.
mc008-3.jpg
d.
mc008-5.jpg
 

 9. 


mc009-1.jpg
a.
Flammability
c.
Reactivity
b.
Health
d.
Contact
 

 10. 


mc010-1.jpg
a.
8.0 g
c.
12.0 g
b.
10.0 g
d.
14.0 g
 

 11. 


mc011-1.jpg
a.
13
c.
15
b.
14
d.
16
 

 12. 

First measurement: 6.293 g
Second measurement: 6.294 g
Third measurement: 6.295 g

A student obtained these data after
measuring the mass of an object three
different times. If the true value of the
object’s mass is 5.550 g, these data are
best described as —

a.
precise but not accurate
c.
accurate and precise
b.
accurate but not precise
d.
neither accurate nor precise
 

 13. 


mc013-1.jpg
a.
Phosphorus trichloride
c.
Potassium trichloride
b.
Phosphorus chloride
d.
Potassium chloride
 

 14. 

What is the main similarity among
elements in group 2?

a.
Atomic radius
c.
Mass number
b.
Chemical properties
d.
Boiling point
 

 15. 


mc015-1.jpg
a.
1
c.
3
b.
2
d.
4
 

 16. 

The gas with the largest volume at STP
is —

a.
10.0 g He
c.
10.0 g Ar
b.
10.0 g Ne
d.
10.0 g Kr
 

 17. 

A neutral atom of aluminum-27
contains —

a.
13 protons and 27 electrons
c.
13 electrons, 13 protons, and
14 neutrons
b.
14 protons and 13 neutrons
d.
13 electrons, 14 protons, and
13 neutrons
 

 18. 

Which of the following could cause a
gaseous substance to liquify?

a.
An increase in pressure
c.
An increase in temperature
b.
An increase in volume
d.
A decrease in number of moles
 

 19. 

The appropriate model for a
decomposition reaction is —

a.
mc019-1.jpg
c.
mc019-3.jpg
b.
mc019-2.jpg
d.
mc019-4.jpg
 

 20. 

According to Charles’ law, the volume
of a fixed amount of gas is directly
proportional to —

a.
isoelectric mixture
c.
barometric pressure
b.
vapor concentration
d.
kelvin temperature
 

 21. 


mc021-1.jpg
a.
1
c.
3
b.
2
d.
4
 

 22. 

The energy required to melt a solid
into a liquid is called —

a.
heat of vaporization
c.
cooling curve
b.
heat of fusion
d.
triple point
 

 23. 

Cations are formed when neutral
atoms lose —

a.
electrons
c.
neutrons
b.
protons
d.
positrons
 

 24. 

What is represented by the pH of a
solution?

a.
Partial pressure of hydrogen ions in the
solution
c.
Concentration of hydrogen ions in the
solution
b.
Electronegativity of dissociated
hydrogen ions in the solution
d.
Temperature of hydrogen ions in the
solution
 

 25. 

The formula for dinitrogen tetroxide
is —

a.
mc025-1.jpg
c.
mc025-3.jpg
b.
mc025-2.jpg
d.
mc025-4.jpg
 

 26. 

Industrial deep-sea divers must
breathe a mixture of helium and
oxygen to prevent a disorienting
condition known as nitrogen narcosis.
If a diver’s tank is filled with a
helium-oxygen mixture to a pressure of
170 atmospheres and the partial
pressure of helium is 110 atmospheres,
the partial pressure of the oxygen is —

a.
60 atm
c.
140 atm
b.
110 atm
d.
280 atm
 

 27. 


mc027-1.jpg
a.
Chromatography
c.
Decanting
b.
Filtration
d.
Distillation
 

 28. 

Which of the following properties
decreases from left to right across a
period?

a.
Atomic number
c.
Atomic radius
b.
Electronegativity
d.
Ionization energy
 

 29. 


mc029-1.jpg
a.
7.87 L
c.
10.2 L
b.
9.45 L
d.
10.6 L
 

 30. 

What is the correct Lewis dot structure
for arsenic?

a.
mc030-1.jpg
c.
mc030-3.jpg
b.
mc030-2.jpg
d.
mc030-4.jpg
 

 31. 


mc031-1.jpg
a.
mc031-2.jpg
c.
mc031-4.jpg
b.
mc031-3.jpg
d.
mc031-5.jpg
 

 32. 


mc032-1.jpg
a.
are condensing at the same rate that
others are evaporating
c.
are evaporating faster than they are
condensing
b.
cease to form when the air in the jar
becomes saturated
d.
form only at high temperatures
 

 33. 


mc033-1.jpg
a.
mc033-2.jpg
c.
mc033-4.jpg
b.
mc033-3.jpg
d.
mc033-5.jpg
 

 34. 


mc034-1.jpg
a.
1
c.
14
b.
2
d.
28
 

 35. 

Which basic lab technique involves the
separation of a mixture’s components
through differences in particle size?

a.
Filtration
c.
Distillation
b.
Extraction
d.
Crystallization
 

 36. 


mc036-1.jpg
a.
decreases the pressure by 80 kPa
c.
increases the pressure by 80 kPa
b.
decreases the pressure by 160 kPa
d.
increases the pressure by 160 kPa
 

 37. 


mc037-1.jpg
a.
2
c.
4
b.
3
d.
6
 

 38. 

Which of the following occurs when a
reaction in a solution is at equilibrium
and more product is added to the
solution?

a.
Equilibrium shifts to produce more
product
c.
No change will occur
b.
Equilibrium shifts to produce more
reactant
d.
The reaction will stop
 

 39. 


mc039-1.jpg
a.
The gas in balloon A is under less
pressure.
c.
The gas in balloon B is under more
pressure.
b.
The gas in balloon A is warmer.
d.
The gas in balloon B is warmer.
 

 40. 

The atomic number corresponds to an
atom’s number of —

a.
protons
c.
electrons
b.
neutrons
d.
positrons
 

 41. 


mc041-1.jpg
a.
mc041-2.jpg
c.
mc041-4.jpg
b.
mc041-3.jpg
d.
mc041-5.jpg
 

 42. 


mc042-1.jpg
a.
mc042-2.jpg
c.
mc042-4.jpg
b.
mc042-3.jpg
d.
mc042-5.jpg
 

 43. 

Which element naturally occurs as a
diatomic molecule?

a.
Zn
c.
K
b.
C
d.
H
 

 44. 


mc044-1.jpg
a.
57 g/mol
c.
165 g/mol
b.
103 g/mol
d.
213 g/mol
 

 45. 


mc045-1.jpg
a.
Bent
c.
Tetrahedral
b.
Linear
d.
Trigonal planar
 

 46. 


mc046-1.jpg
a.
48.1 g
c.
80.1 g
b.
64.1 g
d.
96.1 g
 

 47. 


mc047-1.jpg
a.
1, 1, 1, 1
c.
3, 1, 3, 2
b.
2, 1, 1, 2
d.
3, 2, 2, 1
 

 48. 


mc048-1.jpg
a.
202 J
c.
808 J
b.
404 J
d.
1010 J
 

 49. 


mc049-1.jpg
a.
mc049-2.jpg
c.
mc049-4.jpg
b.
mc049-3.jpg
d.
mc049-5.jpg
 

 50. 

How should 0.000365 be expressed in
proper scientific notation?

a.
mc050-1.jpg
c.
mc050-3.jpg
b.
mc050-2.jpg
d.
mc050-4.jpg
 



 
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