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WorksheetsChem Fall Semester Review
Total questions: 77
Worksheet time: 1hrs 2mins
Name
Class
Date
1.
Which of the following is qualitative data?
a)
Green
b)
5 mL
c)
102 g
d)
5 ⁰C
2.
Data that describes the physical characteristics of a substance is
a)
Qualitative data
b)
Quantitative data
3.
Matter is:
a)
Something that has mass
b)
Something that has a definite composition
c)
A chemical
d)
A substance
4.
What does the prefix "centi-" mean?
a)
10-2
b)
102
c)
10-1
d)
101
5.
What does the prefix "kilo-" mean?
a)
1,000
b)
100
c)
1/1,000
d)
1/100
6.
What does "m" mean when used as a prefix?
a)
1/1,000
b)
1/100
c)
1,000
d)
100
7.
Convert 20.14 into scientific notation.
a)
2.014 x 101
b)
20.14 x 100
c)
2.014 x 10-1
d)
201.4 x 10-1
8.
Convert 138,400,000,000 into scientific notation
a)
1.384 x 1011
b)
1.38400000000 x 1011
c)
1.384 x 10-11
d)
1.38400000000 x 10-11
9.
Convert 0.00000000007810 into scientific notation.
a)
7.810 x 10-11
b)
7.81 x 10-11
c)
7.810 x 1011
d)
7.81 x 1011
10.
Convert 1.380 x 103 into long (expanded) form
a)
1380.
b)
1380
c)
0.001380
d)
0.00138
11.
Convert 1.2 x 101 into expanded (long) form
a)
12
b)
120
c)
12.0
d)
120.
12.
Round the following to 1 sig fig:
8,700
8,700
a)
9
b)
9,000
c)
87
d)
8,700
13.
Round the following to 2 sigfigs:
1.850
1.850
a)
2.0
b)
1.9
c)
1.8
d)
2
14.
Add the following and round to the correct number of sig figs:
342.9 + 170.0004 + 1,112.8
342.9 + 170.0004 + 1,112.8
a)
1625.7
b)
1626
c)
1630
d)
1600
15.
Subtract the following and round your answer to the correct number of sigfigs:
170.0004 - 42.92
170.0004 - 42.92
a)
127.08
b)
127.1
c)
127.0804
d)
127.0
16.
Multiply the following and round to the correct number of sig figs:
102 x 20 x 4,123
102 x 20 x 4,123
a)
8,000,000
b)
8,400,000
c)
84
d)
8
17.
What is the boiling point of water in Celcius?
a)
100 °C
b)
0 °C
c)
212 °C
d)
373 °C
18.
What is the boiling point of water in Fahrenheit?
a)
100 °F
b)
0 °F
c)
212 °F
d)
373 °F
19.
What is the boiling point of water in Kelvin?
a)
100 K
b)
0 K
c)
212 K
d)
373 K
20.
Absolute 0 is which of the following?
a)
0 K
b)
273 °C
c)
0 °F
d)
0 °C
21.
Definition: Something that has mass and volume (occupies space)
a)
Matter
b)
Atom
c)
Molecule
d)
Element
22.
This change DOES change the identity of a substance
a)
Physical change
b)
Chemical change
23.
Burning wood is an example of what?
a)
Physical change
b)
Chemical change
24.
Cutting wood is an example of what?
a)
Physical change
b)
Chemical change
25.
How many compounds are in the following: carbon, HCl, water, carbon dioxide, mercury
a)
1
b)
2
c)
3
d)
4
26.
Another word for a liquid homogeneous mixture
a)
Solution
b)
Compound
c)
Alloy
d)
Liquid
27.
Rocky Road ice cream is an example of a/an
a)
Compound
b)
Element
c)
Heterogeneous mixture
d)
Homogeneous mixture
28.
Kool-aid is an example of a/an
a)
Homogeneous mixture
b)
Heterogeneous mixture
c)
Element
d)
Compound
29.
Which of the following would be classified as a mixture?
a)
Air
b)
Carbon
c)
Copper
d)
Carbon dioxide
30.
The fundamental unit of which elements are composed is
a)
Atom
b)
Alloy
c)
Matter
d)
Molecule
31.
Has fixed volume but takes shape of its container
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
32.
Made of nonmetals that are covalently bonded
a)
Compound
b)
Molecule
c)
Mixture
d)
Alloy
33.
Method for separating liquids; uses boiling point
a)
Distillation
b)
Evaporation
c)
Filtration
d)
Chromatography
34.
Method for separating a solid from a liquid; uses a barrier
a)
Filtration
b)
Distillation
c)
Chromatography
d)
Evaporation
35.
Has a fixed volume and shape; is rigid
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
36.
Has no fixed volume or shape, fills entire container uniformly
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
37.
Amount of mass in a given volume for a substance
a)
Density
b)
Solid
c)
Matter
d)
Alloy
38.
Which of the following is NOT a mixture
a)
Kool-aid
b)
Air
c)
Rocky Road Ice Cream
d)
Pure water
39.
Which of the following is an element
a)
Water
b)
Copper
c)
Bronze
d)
Carbon dioxide
40.
Which of the following is a compound
a)
Pure water
b)
Copper
c)
Carbon
d)
Oxygen gas
41.
A block has a volume of 12 cm3 and a mass of 3.30 g. What is its density?
a)
0.275 g/cm3
b)
0.28 g/cm3
c)
0.27 g/cm3
d)
0.30 g/cm3
42.
Ice has a density of 0.9167 g/cm3. If you have 2.00 g, how much space does the ice occupy?
a)
2.18 cm3
b)
2 cm3
c)
0.5 cm3
d)
0.458 cm3
43.
Gold has a density of 19.32 g/cm3. If you have 5.4 cm3 of gold, how many grams is that?
a)
1Ō0 g
b)
104 g
c)
100 g
d)
10 g
44.
This scientist discovered the mass of the electron
a)
Millikan
b)
Thomson
c)
Rutherford
d)
Bohr
45.
This picture is the atomic model of whom?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
46.
How many neutrons does a Carbon-13 atom have?
a)
7
b)
6
c)
5
d)
4
47.
Nuclear reaction equations differ from chemical reaction equations in that a nuclear equation displays what?
a)
Atomic Number and Mass Number
b)
Atomic Number and protons
c)
Mass Number and Neutrons
d)
Protons and Neutrons
48.
Combining nuclei to form a larger one
a)
Fission
b)
Fusion
c)
Nuclear decay
d)
Chemical Reaction
49.
Identify the missing particle in the following radioactive decay reaction:
23090Th -> 42α + ______
23090Th -> 42α + ______
a)
22688Ra
b)
22688Pu
c)
23494Pu
d)
23494Ra
50.
3.00 x 108 m/s
a)
Speed of light
b)
Planck's Constant
c)
de Broglie Equation
d)
Schrodinger Equation
51.
6.626 x 10-34 J⋅s
a)
Speed of light
b)
Planck's constant
c)
Schrodinger Equation
d)
de Broglie Equation
52.
Electrons are emitted from a metals surface when it is struck by a specific frequency of light
a)
Aufbau Principle
b)
Photoelectric effect
c)
Pauli exclusion principle
d)
Hund's Rule
53.
The maximum number of electrons in the 6th energy level is
a)
72
b)
36
c)
8
d)
18
54.
[Ar]4s23d8
a)
Ni
b)
Cu
c)
Pd
d)
Does not exist
55.
What does the quantum number n represent?
a)
energy level
b)
sublevel
c)
orbital
d)
spin
56.
What does the quantum number l represent?
a)
energy level
b)
sublevel
c)
orbital
d)
spin
57.
What does the quantum number ml represent?
a)
energy level
b)
sublevel
c)
orbital
d)
spin
58.
What does the quantum number ms represent?
a)
energy level
b)
sublevel
c)
orbital
d)
spin
59.
Which of the following is a Noble gas?
a)
Rn
b)
Cd
c)
Sr
d)
Lu
60.
Calculate the energy of a violet light photon with a frequency of 6.6x1014 Hz
a)
4.4x10-19 J
b)
4.4 J
c)
4.5x10-14 J
d)
4.5 J
61.
What is the wavelength of a ray with a frequency of 8.89x1021 Hz?
a)
3.37x10-14 m
b)
3.4x10-14 m
c)
5.89x10-12 m
d)
5.9x10-12 m
62.
The photoelectric effect says that sodium metal requires light with an energy of 4.41x10-19 J in order to eject an electron. Does blue light (wavelength = 471 nm) have enough energy to eject the electron from the metal?
a)
Yes, its energy is 4.41x10-19 J
b)
No, its energy is 4.22x10-19 J
c)
No, its energy is 3.46x10-19 J
d)
No, its energy is 3.10x10-19 J
63.
The groups of elements that are inert because they have full outer energy levels, most of which are gases, are _____.
a)
Alkali Metals
b)
Alkaline Earth Metals
c)
Halogens
d)
Noble Gases
64.
The group of elements that fill the 5f sublevel and are radioactive is _____.
a)
actinides
b)
alkaline earth metals
c)
lanthanides
d)
alkali metals
65.
The trend of electronegativity across a period (row) on the periodic table _____.
a)
decreases
b)
increases
c)
does not change
66.
Which of the following explains why the atomic radius size increases as you go down a group of elements?
a)
Increased numbers of protons and electrons caused greater attraction to the nucleus.
b)
Decreased shielding effect of inner electrons decreases the attraction of the nucleus, along with increased numbers of energy levels.
c)
Fewer energy levels
d)
Increased shielding effect of inner electrons decreases the attraction of the nucleus, along with increased numbers of energy levels.
67.
All of the main group elements are also called _____ elements.
a)
transition
b)
inner transition
c)
representative
d)
metalloids
68.
Cobalt (Co) and silver (Ag) are _________ based on their locations in the periodic table.
a)
Inner transition elements
b)
Transition elements
c)
Alkali metals
d)
Alkaline earth metals
69.
Which trend would decrease going across to the right in a period of the periodic table?
a)
Ionization energy
b)
Electronegativity
c)
Atomic radius
d)
Shielding Effect
70.
The trend that stays constant as you go across the periodic table is
a)
Electronegativity
b)
Ionization Energy
c)
Shielding Effect
d)
Atomic radius
71.
Which element needs to lose one electron to have a noble gas configuration?
a)
Lithium
b)
Magnesium
c)
Carbon
d)
Chlorine
72.
Energy needed to remove an electron from an atom is called
a)
Electronegativity
b)
Shielding Effect
c)
Ionization Energy
d)
Atomic Radius
73.
What happens to electronegativity as you go down each group?
a)
It increases
b)
It decreases
c)
It stays the same
d)
It varies with no trend apparent
74.
All of the elements in group 17 have _____.
a)
the same number of valence electrons
b)
a different number of valence electrons
c)
varied numbers of valence electrons
d)
no valence electrons
75.
When oxygen forms an ion, it gains two electrons and has a charge of _____.
a)
+2
b)
-2
c)
+6
d)
-6
76.
Which group of elements have full s and p orbitals?
a)
alkali earth metals
b)
alkaline earth metals
c)
metalloids
d)
noble gases
77.
The scientist that first developed the basic pattern of the periodic table was _____.
a)
Lavoisier
b)
Davy
c)
Mendeleev
d)
Moseley
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