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WorksheetsMidterm Review
Total questions: 120
Worksheet time: 2hrs 34mins
Name
Class
Date
1.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
2.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus
3.
Where are electrons?
a)
Nucleus
b)
Orbits
4.
On Periodic Table, how are elements ordered?
a)
color
b)
shape
c)
atomic number
d)
alphabetically
5.
which of the following is an example of a physical change?
a)
a car rusting
b)
cutting a piece of wood
c)
acid rain corroding a barn door
d)
water seperating into hydrogen and oxygen atoms.
6.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
7.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
8.
What is the number 22?
a)
APE number
b)
Atomic Mass
c)
Element Name
d)
Chemical Symbol
9.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
10.
Something that is made up of only one kind of atom is known as _________________.
a)
a molecule
b)
a compound
c)
an element
d)
a proton
11.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
12.
In which region would the nonmentals be found?
a)
1
b)
4
c)
3
d)
5
13.
A "group" is a ____________ on the periodic table.
a)
column
b)
row
14.
A "period" is a ____________ on the periodic table.
a)
column
b)
row
15.
Helium, neon, argon, krypton, xenon, and radon are known as _____________.
a)
halogens
b)
noble gases
c)
metalloids
d)
transition elements
16.
How many elements are represented in the compound?
Na2CO3
Na2CO3
a)
1
b)
2
c)
3
d)
4
17.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
18.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
19.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
20.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
21.
When you break a cracker into pieces it is a
a)
Chemical change
b)
Physical change
c)
Chemical Weathering
d)
Physical Weathering
22.
Which is a chemical change?
a)
freezing fruit juice
b)
slicing a potato
c)
boiling water
d)
copper metal turning green
23.
If there is no subscript, there is ______ atom(s) of that element.
a)
0
b)
2
c)
only 1
d)
1 million
24.
How many atoms of Hydrogen are in this compound
a)
1
b)
2
c)
3
d)
4
25.
How many elements are in the this compound?
H2CO4N5
H2CO4N5
a)
11
b)
4
c)
12
d)
5
26.
Water is an element?
a)
true
b)
false
27.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
28.
The group number tells us how many _________ there are in an element.
a)
groups
b)
valence electrons
c)
energy levels
d)
chemicals
29.
How many valence electrons do elements in group 17 have in their outer energy level?
a)
7
b)
17
c)
1
d)
0
30.
True or False - An energy level has to be full before moving on to the next energy level?
a)
true
b)
false
31.
The characteristics or properties of metals include
a)
shiny and solid
b)
ductile and malleable
c)
lose electrons
d)
all of the above
32.
The ________________ tells you how many energy levels are used in an element.
a)
group number
b)
atom
c)
protons
d)
period number
33.
Which is not a sign of a chemical change?
a)
water evaporating
b)
gas bubbles
c)
color change
d)
temperature change
34.
Most elements on the periodic table are
a)
metals
b)
nonmetals
c)
metalloids
35.
a substance that is lustrous, malleable, and conducts heat and electricity well. The substance is most likely:
a)
metal
b)
nonmetal
c)
metalloid
36.
Why would a ball float on top of water?
a)
the ball is more dense than water
b)
the ball is less dense than water
c)
they both have equal densities
37.
An element is composed of only one type of
a)
atom
b)
molecule
c)
compound
d)
mixture
38.
Which of the following cannot be broken down into a simpler substance?
a)
water
b)
sand
c)
the element silver
39.
A substance is dull, brittle and does not conduct electricity. It is most likely a
a)
metal
b)
nonmetal
c)
metalloid
40.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
41.
The change of state from a liquid to a gas
a)
evaporation
b)
condensation
42.
The change of state from a gas to a liquid
a)
condensation
b)
evaporation
43.
The process of changing into entirely new substances
a)
chemical change
b)
physical change
44.
Sublimation is a change of state from a solid directly to a(n)___.
a)
liquid
b)
gas
c)
solid
d)
condensation
45.
A copper penny can turn green if it reacts with carbon dioxide and water. This is an example of a(n)___.
a)
physical change
b)
chemical change
c)
physical property
d)
chemical property
46.
Isotopes are the same elements with different number of.....
a)
protons
b)
electrons
c)
neutrons
d)
atoms
47.
What is the difference between O18 and O16
a)
18 electrons
b)
16 protons
c)
2 neutrons
d)
2 electrons
48.
When an atom loses electrons it becomes
a)
a positive ion
b)
a negative ion
c)
both positive and negative ion
d)
a neutral ion
49.
What make atoms react with each other and create bonds?
a)
The atomic number
b)
The atomic Mass
c)
The electrons of the outer shell
d)
The electrons of the inner shell
50.
What is the symbol for iron?
a)
I
b)
Ir
c)
Fe
51.
Boiling water
a)
Chemical Change
b)
Physical Change
52.
Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
a)
Yes
b)
No
53.
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
_Al +_HCl --> _H2 +_AlCl3
a)
2, 6, 3, 2
b)
it is already balanced
c)
4, 12, 3, 4
d)
2, 1, 4, 5
54.
Balance this equation
_N2 + _H2 --> _NH3
_N2 + _H2 --> _NH3
a)
1,2,3
b)
1,3,2
c)
1,1,2
d)
2,1,1
55.
Balance this equation.
_CF4 + _Br2 -- _CBr4 + _F2
_CF4 + _Br2 -- _CBr4 + _F2
a)
2,1,2,1
b)
1,2,2,1
c)
1,2,1,2
d)
2,2,2,2
56.
Balance this equation
_Zn+_HCl-->_ZnCl2 +_H2
_Zn+_HCl-->_ZnCl2 +_H2
a)
1,1,2,1
b)
1,1,1,2
c)
1,2,1,1
d)
2,1,1,1
57.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction.
58.
What is a coefficient?
a)
The small number on the right of the chemical symbol.
b)
The large number to the left of a formula.
59.
How many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O3
a)
2
b)
6
c)
1
d)
4
60.
What is the arrow in a chemical equation...
H2 + O --> H2O
H2 + O --> H2O
a)
Reactants
b)
Products
c)
Yields
d)
Chemical Equation
61.
Determine if Barium Sulfide is Ionic or covalent
a)
Ionic
b)
Covalent
62.
Which of the following is the correct formula for calcium chloride?
a)
CaCh
b)
CaC
c)
CaCl2
63.
Which of the following is the correct name for BaO?
a)
Barium Oxygen c.
b)
Barium (I) Oxide
c)
Barium Oxide
64.
Which of the following is the correct name for MgF2?
a)
Magnesium Fluorine
b)
Magnesium Difluoride
c)
Magnesium Fluoride
65.
What is the correct chemical formula for water?
a)
H20
b)
NH3
c)
OH
66.
Which of the following is the correct name for PbCl4?
a)
Lead Chloride
b)
Lead (I) Chloride
c)
Lead (IV) Chloride
67.
Which of the following is the correct name for Fe2(SO4)3?
a)
Iron (II) Sulfate
b)
Iron (II) Sulfite
c)
Iron (III) Sulfate
68.
Which of the following is the correct name for Na2SO4?
a)
Sodium sulfide
b)
Sodium disulfite
c)
Sodium sulfate
69.
Which of the following is the correct formula for sodium carbonate?
a)
NaC2
b)
Na2CO3
c)
Na3CO
70.
Which of the following is the correct formula for calcium phosphate?
a)
Ca3(PO4)2
b)
Ca2(PO4)3
c)
CaPO4
71.
Which of the following is the correct formula for copper (I) sulfide?
a)
CuS
b)
Cu2S
c)
CuSO4
72.
Disulfur trioxide
a)
S3O2
b)
SO
c)
S2O3
d)
S2O
73.
P2O5
a)
Phosphorus Oxide
b)
Pentaphosphorus Dioxide
c)
Diphosphorous pentoxide
d)
Phosphoric Oxygen
74.
Name the compound AlBr3
a)
aluminum bromide
b)
aluminum tribromide
c)
aluminum bromine
d)
monoaluminum tribromide
75.
Name the compound Na2O
a)
Sodium Oxide
b)
Sodium Dioxide
c)
Sodium Oxygen
d)
Natride Oxide
76.
find the formula potassium hydroxide
a)
KH
b)
KOH
c)
K2OH
d)
K(OH)2
77.
find the formula zinc sulfate
a)
ZnSO3
b)
ZnSO4
c)
ZnS
d)
Zn(SO4)2
78.
What is the formula for Tetraphosphorus decoxide
a)
(PO4)4O2
b)
P4O2
c)
P4O10
d)
none of the above
79.
What is the formula for nitrogen trifluoride
a)
NF3
b)
N2F3
c)
NF
d)
NFL
80.
What is the correct name of the compound with the formula NCl3
a)
nitrogen trichloride
b)
mononitrogen trichloride
c)
nitrogen trichlorine
d)
mononitrogen trichlorine
81.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
82.
What is the formula for sulfuric acid?
a)
HSO3
b)
H2SO3
c)
H2SO4
d)
H3SO4
83.
Name the following ionic compound: FeCl3
a)
iron chloride
b)
iron III chloride
c)
iron chlorate
d)
iron III chlorate
84.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
85.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
86.
What atom matches this electron configuration?
1s22s22p63s2
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
87.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
88.
What is the electron configuration of Ag?
a)
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d10
b)
[Kr] 5s2 4d9
c)
1s2 2s2 2p6 3s2 3p6 4s2 4p6 5s2 4d9
d)
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4d10 4p6 5d10 5s2 4d9
89.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
90.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
91.
How many valence Electrons does Copper Have?
1s2 2s2 2p6 3s2 3p6 4s2 3d9
1s2 2s2 2p6 3s2 3p6 4s2 3d9
a)
2
b)
9
c)
17
d)
2
92.
Identify the Electron Configuration for Aluminum (Al)
a)
1s2 2s2 2p6 3s2 3p1
b)
1s2 2s2 2p6 3s2 3p3
c)
1s2 2s2 2p6 3s2 4p1
93.
What electron configuration matches an oxygen ion?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
94.
How many valence electrons does Chlorine have?
a)
5
b)
2
c)
7
d)
5
95.
How many valence electrons does phosphorus have?
a)
5
b)
2
c)
8
d)
15
96.
What element has the valence shell configuration
3s2 3p2
3s2 3p2
a)
Al
b)
B
c)
Si
d)
Ga
97.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
98.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
99.
What is the mass number defined as?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
100.
What is the atomic number of this atom?
a)
1
b)
3
c)
4
d)
7
101.
How many protons are in a sodium atom? (tap to enlarge the periodic table)
a)
Sodium has 1 proton.
b)
Sodium has 3 protons.
c)
Sodium has 11 protons
102.
How many neutrons does an atom of the isotope Neon-22 have? (tap to enlarge the image)
a)
12
b)
10
c)
22
d)
20
103.
The number in Kr-84 represents what about Krypton?
a)
The number of electrons
b)
The number of protons
c)
The mass number
104.
Which side of a chemical equation is the product side?
a)
Left (before the yields sign)
b)
Right (after the yields sign)
105.
Which of the following has the most number of O?
a)
2Mg3(PO4)2
b)
4AlPO4
c)
3Al(NO3)3
d)
15KOH
106.
N2 + H2 = NH4
a)
Balanced
b)
Unbalanced
107.
The chemical formula for tin (IV) oxide is written
a)
Sn2O4
b)
Ti2O4
c)
SnO2
d)
TiO2
108.
hexasulfur heptoxide is written as
a)
S6O7
b)
6S 7O
c)
7S 6O
d)
S7O6
109.
Iron (III) phosphide
a)
IrP3
b)
FeP3
c)
FeP
d)
IrP
110.
Manganese (II) nitrate is written
a)
MnNO2
b)
Mn(NO2)2
c)
Mn(NO3)2
d)
Mn(NO2)3
111.
Zinc acetate is written
a)
ZnCH3COO
b)
Zn(CH3COO)2
c)
Z(CH3COO)2
d)
ZnCHO
112.
Silver Nitrate is written
a)
SiNO3
b)
AgNO3
c)
AuNO3
d)
SNO3
113.
Mercury (II) chloride
a)
HgCl2
b)
Hg(II)Cl
c)
MgCl2
d)
MCl2
114.
The chemical formula for diphosphorous pentoxide is
a)
P5O2
b)
2P 5O
c)
5P 2O
d)
P2O5
115.
What is the noble gas configuration for boron?
a)
[He]1s22s2
b)
[He]2s22p2
c)
[He]2s22p1
d)
[Li]2s22p1
116.
What is the noble gas configuration for phosphorus?
a)
[Ar] 3p5
b)
[He] 3s2 3p5
c)
[Ne] 3s2 3p3
d)
[Na] 3s2 3p5
117.
[Ne]3s23p1 is the noble gas configuration for which element?
a)
scandium
b)
boron
c)
nitrogen
d)
aluminum
118.
[Ne]3s23p5 is the noble gas configuration for which element?
a)
chlorine
b)
fluorine
c)
sulfur
d)
aluminum
119.
What is the noble gas configuration for Neon?
a)
[Ne]
b)
[He]2s22p6
c)
[F]2p1
d)
[Ne]2s21p6
120.
What is the noble gas configuration for Argon?
a)
[Ne]2s22p6
b)
[He]2s22p6
c)
[He]3s23p6
d)
[Ne]3s23p6
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