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Transcript
Academic Chemistry Part I
Final Review
Click Here to
Start
In which of the following
situations would a student be
following the lab safety rules?
A
Performing unauthorized experiments
B
Wearing goggles
C
Pushing and shoving his/her lab partner
D
Adding water to acid
2 of 76
Which instrument measures
mass?
A
Graduated cylinder
B
Beaker
C
Balance
D
Scale
3 of 76
What piece of equipment would
a clay triangle be used to hold?
A
Crucible
B
Watch glass
C
Evaporating Dish
D
Beaker
4 of 76
Which of the following should
you not do if you spill chemicals
on you?
A
Tell your teacher
B
Wash it off
C
Read the label to determine the chemical
D
Continue your lab work
5 of 76
Which of the following is smaller
than a centimeter?
A
Decameter
B
Decimeter
C
Millimeter
D
Kilometer
6 of 76
How many times smaller is the
centimeter than the base unit?
A
100
B
1000
C
10
D
10000
7 of 76
The gram is the standard unit of
A
Volume
B
Mass
C
Density
D
Length
8 of 76
How many milliliters are equal to
5 liters?
SHOW WORK!
A
0.005 mL
B
500 mL
C
5000 mL
D
0.05 mL
9 of 76
If you wanted to convert from
gram to kilogram, which is the
correct conversion factor?
A
1000g/1kg
B
1000 kg/1 g
C
1 g/1000 kg
D
1 kg/1000g
10 of 76
Which of the following is not a
unit of volume?
A
mL
B
L
C
cm3
D
m
11 of 76
Convert 60 km/h to m/min
SHOW WORK!
A
3600000 m/min
B
60000 m/min
C
1000 m/min
D
360 m/min
12 of 76
How many seconds are in two
days?
SHOW WORK!
A
172800 seconds
B
2880 seconds
C
1440 seconds
D
4882 seconds
13 of 76
What is the scientific notation
for 500.?
A
5.00 x 102
B
50.0 x 101
C
.500 x 103
D
5.00 x 10-2
14 of 76
What is the standard notation
for 4.56 x 10-1?
A
45.6
B
0.456
C
0.00456
D
456
15 of 76
What is the product of 3.4 x 106
and 7.8 x 102?
A
2.7 x 1011
B
2.7 x 109
C
2.7 x 10-9
D
2.7 x 10-11
16 of 76
How many significant digits are
in the number 50.000?
A
5
B
1
C
2
D
4
17 of 76
How many significant digits are
in the number 0.025
A
3
B
4
C
2
D
1
18 of 76
What is the answer to the
correct number of significant
digits?
5.0005 -2
A
3.0005
B
3.000
C
3.0
D
3
19 of 76
What is a pure substance that is
a combination of elements
chemically combined
A
compound
B
mixture
C
solution
D
matter
20 of 76
Sugar completely dissolved in
water is classified as
A
element
B
compound
C
solution
D
mixture
21 of 76
What is the classification of Iron
(Fe)
A
compound
B
mixture
C
element
D
solution
22 of 76
Something that has mass and
takes up space refers to
A
All matter except liquids
B
All matter except gases
C
All matter except solids
D
All matter
23 of 76
The tarnishing of silver is a
A
Chemical change
B
Physical change
C
Nuclear change
D
None of these
24 of 76
Breaking a pencil in half is a
A
Chemical Change
B
Physical Change
C
Nuclear Change
D
None of these
25 of 76
Dissolving of salt in water is a
A
Chemical change
B
Physical change
C
Nuclear change
D
None of these
26 of 76
What must happen in a chemical
change that does not occur in a
physical change?
A
New substance is formed
B
Change in energy
C
Change in appearance
D
None of these
27 of 76
Reacts with magnesium metal
A
Chemical Property
B
Physical Propery
28 of 76
Boiling Point is
A
Chemical Property
B
Nuclear Property
C
Physical Property
29 of 76
Which of the following is a
heterogeneous form of matter?
A
Water (H2O)
B
Carbon (C)
C
Dissolved salt water (NaCl + H2O)
D
Sand and water (SiO2 + H2O)
30 of 76
How would you calculate
density?
A
Mass x volume
B
Density x volume
C
Mass/volume
D
Volume/mass
31 of 76
How would you calculate mass?
A
Density x Volume
B
Mass x Volume
C
Density / Volume
D
Mass / Volume
32 of 76
How would you calculate
volume?
A
Mass x Density
B
Mass / Density
C
Volume x density
D
Mass / Volume
33 of 76
A student determines the mass
of an object to be 95.0 grams,
but the actual mass is 100.0 g.
What is the percent error?
SHOW WORK!
A
10.5%
B
95.0%
C
5.00%
D
1.05%
34 of 76
Who discovered the electron?
A
John Dalton
B
J.J. Thomson
C
Ernest Rutherford
D
Neils Bohr
35 of 76
What experiment did Ernest
Rutherford perform?
A
Gold foil experiment
B
Cathode-ray tube
C
Both of these
D
None of these
36 of 76
Neils Bohr proposed a model in
which the electrons are found in
A
Rings
B
The nucleus
C
The kernel
D
None of these
37 of 76
The vertical columns on the
periodic table are called
A
Periods
B
Groups
C
Families
D
Both b and c
38 of 76
The nucleus is the center part of
the atom that contains
A
Only Protons
B
Only Neutrons
C
Both Protons and Neutrons
D
Both Protons and Electrons
39 of 76
Elements that are along the bold
step line are called
A
Metals
B
Transition Metals
C
Nonmetals
D
Metalloids
40 of 76
The tendency of an element to
react with other elements?
A
Reaction Tendency
B
Chemical Activity
C
Radioactivity
D
Activity Ratio
41 of 76
Which of the following is not
true about the noble gases?
A
They are unreactive
B
They are gases
C
They all have eight valence electrons
D
They are chemically stable
42 of 76
What is the most active
nonmetal?
A
Helium
B
Francium
C
Hydrogen
D
Fluorine
43 of 76
If copper has two isotopes, what
is the average atomic mass?
Copper-63 makes up 69.2% and
Copper –65 makes up 30.8%
SHOW WORK!
A
63.8 g
B
6380 g
C
169.2 g
D
63.0 g
44 of 76
The term ion refers to an atom
that has
A
Only lost electrons
B
Only gained electrons
C
Gained or lost electrons
D
Gained or lost protons or neutrons
45 of 76
An isotope has the same atomic
number and a different number
of
A
Protons
B
Electrons
C
Neutrons
D
Ions
46 of 76
Which of the following is a
property of a metal?
A
Brittle
B
Conducts heat and electricity
C
Dull
D
None of these
47 of 76
What is the largest part of the
atom (mass)?
A
Electron Cloud
B
Protons
C
Neutrons
D
Nucleus
48 of 76
Which of the following elements
is a halogen?
A
Chlorine
B
Sodium
C
Calcium
D
Argon
49 of 76
Which of the following elements
is the least chemically active?
A
Cesium
B
Radon
C
Lithium
D
Chlorine
50 of 76
Which element has the smallest
radius?
A
S
B
S2-
C
Al
D
K
51 of 76
Which element has the smallest
ionization energy?
A
O
B
N
C
Ba
D
Cu
52 of 76
What groups are part of the d
block?
A
1-4
B
13-18
C
4-7
D
3-12
53 of 76
Cerium (Atomic number 58) is a
A
Nonmetal
B
Metalloid
C
Transition Metal
D
Metal
54 of 76
What two groups are part of the
s block?
A
Alkali metals and alkaline earth metals
B
Halogens and noble gases
C
Alkaline earth metals and transition metals
D
Transition metals and Metalloids
55 of 76
Which family on the periodic
table has seven valence
electrons?
A
Noble Gases
B
Halogens
C
Alkali Metals
D
Alkaline Earth Metals
56 of 76
What element is in group 5 and
period 6?
A
Ta
B
Mo
C
Bi
D
Te
57 of 76
Where are the metals found on
the periodic table?
A
Right of step line
B
Left of step line
C
On the staircase
D
There is no specific location or grouping
58 of 76
The atomic number is always
equal to the number of
A
Electrons
B
Neutrons
C
Protons
D
Sum of Protons and Neutrons
59 of 76
If the charge of the atom is
positive the atom has
A
Lost a proton
B
Gained a proton
C
Gained an electron
D
Lost an electron
60 of 76
The mass number is the sum of
the
A
Protons and Neutrons
B
Protons and Electrons
C
Neutrons and Electrons
D
Protons, Neutrons and Electrons
61 of 76
Which of the following waves
has the shortest wavelength?
A
B
C
D
62 of 76
Which wave has the least
amount of energy?
A
B
C
D
63 of 76
Which element has valence
electrons in the second energy
level?
A
Li
B
Ca
C
Cu
D
K
64 of 76
How many electrons are in any
one orbital
A
14
B
10
C
2
D
6
65 of 76
Which is the correct Lewis
structure for Nitrogen?
A
N
B
N
C
N
D
N
66 of 76
What is the correct electron
configuration for Ga?
A
1s22s22p63s23p64s23d104p1
B
1s22s22p63s23p64s24p65s24d3
C
1s22s22p63s24s24p65s24d9
D
1s12s22p63s23p64s23d104p2
67 of 76
What kind of bond involves the
unequal sharing of electrons?
A
Nonpolar covalent bond
B
Polar covalent bond
C
Ionic bond
D
Metallic bond
68 of 76
What type of bond involves
electrostatic attractions between
positive and negative charges?
A
Nonpolar covalent bond
B
Polar covalent bond
C
Ionic bond
D
Metallic bond
69 of 76
What type of bond usually
occurs between sodium and
chlorine?
A
Nonpolar covalent bond
B
Polar covalent bond
C
Ionic bond
D
Metallic bond
70 of 76
What type of bond occurs
between two bromine atoms?
A
Nonpolar covalent bond
B
Polar covalent bond
C
Ionic bond
D
Metallic bond
71 of 76
What is the shape of an
ammonia molecule (NH3)?
A
Bent
B
Tetrahedral
C
Triangular Planar
D
Triangular Pyramidal
72 of 76
What type of molecule is CO2?
A
Linear
B
Ionic Crystal
C
Polar
D
Nonpolar
73 of 76
A substance that does not
dissolve in water must be
A
Nonpolar
B
Polar
C
Ionic
D
Both b and c
74 of 76