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Semester Exam Review
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The study of matter and the changes in
matter best describes the science of
A)
B)
C)
D)
Biology
Physics
Microbiology
Chemistry
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Chemistry is
A)
B)
C)
D)
a biological science.
a physical science.
concerned mostly with living things.
the study of electricity.
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How many valence electrons are in
an atom of magnesium?
A) 4
B) 2
C) 3
D) 5
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The branch of chemistry that includes the
study of materials and processes that
occur in living things is
A.
B.
C.
D.
Organic chemistry
Physical chemistry
Analytical chemistry
Biochemistry
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The study of substances containing carbon
is
A) Organic chemistry
B) Inorganic chemistry
C) Analytical chemistry
D) Biochemistry
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Technology is
A)
B)
C)
D)
Analysis of chemical behavior
Application of chemical principles to
predict events
Application of scientific knowledge to
solve problems
Study of scientific processes
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What is the formula of the ion
formed when potassium achieves
noble-gas electron configuration?
A) K+
B) K2+
C) K
D) K2-
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Basic research is
A)
B)
C)
D)
Carried out for the sake of increasing
knowledge
The production and use of products that
improve our life.
The identification of the components and
composition of materials
Carried out to solve a problem
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Which of the following is a
heterogeneous mixture?
A) soil
B) air
C) steel
D) salt water
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Matter includes all of the following except
A)
B)
C)
D)
Smoke
Water vapor
Light
Air
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Chemical properties
A)
B)
C)
D)
Include changes of state of a substance
Include mass and color
Include changes that alter the identity of a
substance
Can be observed without altering the
identity of a substance
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Two features that distinguish matter are
A)
B)
C)
D)
Mass and velocity
Weight and velocity
Mass and volume
Weight and volume
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 Who
was the man who lived from
460 B.C.–370 B.C. and was among
the first to suggest the idea of atoms?
 A Atomos
 B Democritus
 C Thomson
 D Dalton
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 A horizontal row of the periodic
table is usually referred to as a
 A family.
 B period.
 C group.
 D property.
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 What
does the number 84 in the
name krypton-84 represent?
 A the mass number
 B the atomic number
 C twice the number of protons
 D the sum of the protons and
electrons
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 In
a chemical reaction, the type of
products obtained is largely
determined by which part of the
reacting chemicals?
A protons
B neutrons
C nuclei
D electrons
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 The sum of the protons and
neutrons in an atom equals the
____.
 A atomic mass
 B mass number
 C atomic number
 D nucleus number
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 Which of the following changes to
a metal is a chemical change?
 A melting
 B polishing
 C bending
 D rusting
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 The
smallest particle of an element
that retains the properties of that
element is a(n) ____.
 A proton
 B atom
 C electron
 D neutron
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 What is the net charge of the
ionic compound calcium fluoride?
A 0
B 1
 C 1–
 D 2–
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 Which
of the following elements has
the smallest first ionization energy?
 A potassium
 B magnesium
 C sodium
 D calcium
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 The
modern periodic table is
arranged in order of increasing
atomic ____.
 A radius
 B mass
 C number
 D charge
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 Which
of the following is a chemical
property?
 A ability to react with oxygen
 B color
 C freezing point
 D hardness
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 The first letter in a properly
written chemical symbol is always
 A underlined.
 B capitalized.
 C italicized.
 D bold faced.
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 What element has the electron
configuration 1s22s22p63s23p2?
A
B
C
D

silver
selenium
nitrogen
silicon
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When paper turns yellow-brown upon
exposure to sunlight, what type of change is
likely taking place?
 A neither a physical change nor a chemical
change
 B a physical change
 C both a physical change and a chemical
change
 D a chemical change

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 The letter "p" in the symbol 4p
indicates the ____.
 A orbital shape
 B principle energy level
 C speed of an electron
 D spin of an electron
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 What type of ions have names
ending in -ide?
 A only cations
 B only metal ions
 C only anions
 D only gaseous ions
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 Which of the following elements
has the smallest ionic radius?
 A Li
B O
C K
D S
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 Which of the following
measurements contains two
significant figures?
 A 0.004 40 L
 B 0.004 04 L
 C 0.004 00 L
 D 0.000 44 L
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 Which of the following elements
forms an ion with a 1– charge?
 A sodium
 B fluorine
 C hydrogen
 D potassium
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 Which state of matter has a
definite volume and takes the
shape of its container?
 A solid
 B liquid only
 C gas only
 D both b and c
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 What is the charge on the
strontium ion?
 A 2+
+
B 1
 C 1–
 D 2–
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 What is the element with the
highest electronegativity value?
 A fluorine
 B calcium
 C cesium
 D helium
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 How many significant figures are
in the measurement 811.40
grams?
 A two
 B five
 C four
 D three
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 Isotopes of the same element
have different
A chemical behavior.
B positions on the periodic table.
C mass numbers.
D atomic numbers.
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 Express the sum of 7.68 m and
5.0 m using the correct number
of significant digits.
A 13 m
B 12.68 m
C 12.7 m
D 10 m
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 Which of the following is a
cation?
A Ca2+
2B SO3
C sulfate
D chlorite
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 Which state of matter takes both
the shape and volume of its
container?
A solid
B liquid only
C gas only
D both b and c
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How many electrons can occupy the s
orbital at each energy level?
a.
b.
c.
d.
Two, if they have opposite spins
Two, if they have the same spin
One
No more than eight
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How many protons, electrons, and neutrons
does an atom with atomic number 50 and
mass number 125 contain?
A. 50 protons, 50 electrons, 75 neutrons
B . 70 neutrons, 75 protons, 50 electrons
C. 120 neutrons, 50 protons, 75 electrons
D. 75 electrons, 50 protons, 50 neutrons

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Divide 5.7 m by 2 m. The quotient is
correctly reported as
a.
b.
c.
d.
2.8 m
2.85 m
2.9 m
3m
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The graph of a direct proportion is a(n)
a.
b.
c.
d.
Straight line
Ellipse
Parabola
Hyperbola
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Argon, krypton, and xenon are
a.
b.
c.
d.
Alkaline earth metals
Noble gases
Actinides
Lanthanides
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Mendeleev is credited with developing the
first successful
a.
b.
c.
d.
Periodic table
Method of determining atomic number
Test for radioactivity
Use of x-rays
Which of the following shows a physical change
occurring?
 a. A peach spoils.
 b. A copper bowl tarnishes.
 c. A piece of jewelry turns your skin
green.
 d. A hot-glue gun melts a glue stick.
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Which element listed is considered to be
unreactive (inert) based on its location on
the periodic table?
a.
b.
c.
d.
Ca
P
Si
Ar
Which of the following observations
does not indicate that a chemical
change has occurred?
 a. change of state
 b. formation of a precipitate
 c. absorption of energy
 d. release of a gas
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What is the atomic number of aluminum?
a.
b.
c.
d.
13
14
26.98
26.9815
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A neutral atom of selenium contains
a.
b.
c.
d.
34 electrons
78.96 electrons
45 electrons
79 electrons
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The most useful source of chemical
information about the elements is a
a. Calculator
b. Table of metric equivalents
c. Periodic table
d. Table of isotopes
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Elements in a group in the periodic table can
be expected to have similar
a. Atomic masses
b. Atomic numbers
c. Number of neutrons
d. properties
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A vertical column of blocks in the periodic
table is called a(n)
a.
b.
c.
d.
Period
Group
Property
Octet
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The elements that border the zigzag line in
the periodic table are
a.
b.
c.
d.
Inactive
Metals
Metalloids
nonmetals
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Which of the following is quantitative?
a.
b.
c.
d.
The liquid turns blue litmus paper red.
The liquid boils at 100oC.
The liquid tastes bitter.
The liquid is cloudy.
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Quantitative observations are recorded
using
a.
b.
c.
d.
Numerical information
A control
Non-numerical information
A system
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A testable statement used for making
predictions and carrying out further
experiments is a
a. Law
b. Theory
c. Generalization
d. Hypothesis
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All but one of these units are SI base units.
The exception is the
a.
b.
c.
d.
kilogram
second
liter
Kelvin
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Barium, atomic number 56, is the fifth
element in Group 2. What is the atomic
number of radium, the next element in
group 2?
a. 64
b. 74
c. 88
d. 103
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The particles in a solid are
a.
b.
c.
d.
packed closely together
constantly in motion
very far apart
able to slide past each other
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Which element has properties most similar
to potassium?
a.
b.
c.
d.
boron
calcium
sulfur
nitrogen
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Which of the following is qualitative?
a.
b.
c.
d.
A chemical reaction is complete in 2.3
seconds.
The solid has a mass of 23.4 grams.
The pH of a liquid is 5.
Salt deposits form from an evaporated
liquid.
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The symbol for the metric unit used to
measure mass is
a.
b.
c.
d.
m
mm
g
L
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The density of aluminum is 2.70 g/cm3. The
volume of a solid piece of aluminum is 1.50
cm3. Find its mass.
a.
b.
c.
d.
1.50 g
2.70 g
1.80 g
4.05 g
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0.06 cm is the same as
a.
b.
c.
d.
0.000 06 m
0.006 mm
0.06 m
0.6 mm
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A chemist who frequently carries out a
complex experiment is likely to have high
a.
b.
c.
d.
Accuracy, but low precision
Precision, but low accuracy
Accuracy
Precision
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Written in scientific notation, the
measurement 0.000 065 mm is
a.
b.
c.
d.
6.5 x 10-4 mm
6.5 x 10-5 mm
6.5 x 10-6 mm
65 x 10-4 mm
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When 64.4 is divided by 2.00, the correct
number of significant figures in the result is
a.
b.
c.
d.
1
2
3
4
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The result of dividing 107 by 103 is
a.
b.
c.
d.
1010
104
10-4
10-10
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Because most particles fired at metal foil
passed straight through, Rutherford
concluded that
a.
b.
c.
d.
Atoms were mostly empty space
Atoms contained no charged particles
Electrons formed the nucleus
Atoms were indivisible
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The number of atoms in 1 mole of hydrogen
is
a. 6.022 x 1022
b. 6.022 x 1023
c. 5.022 x 1022
d. 5.022 x 1023
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Visible light, X rays, infrared radiation, and
radio waves all have the same
a.
b.
c.
d.
Energy
Wavelength
Energy
Speed
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A mass of 6.005 g of carbon (atomic mass
12.010 amu) contains
a.
b.
c.
d.
1 mol C
2 atoms C
0.5000 mol C
1 atom O
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The mass of 1 mole of chromium (atomic
mass 51.996 amu) is
a.
b.
c.
d.
12 g
198 g
51.996 g
6.02 x 1023 g