Download CH.3 Nomenclature Chemical Formulas

Chemistry
Nomenclature, Chemical Formulas, and Reactions
Released Test Questions
2002 - 2009
2000.19. O2, N2, Cl2, and I2 are examples of —
1.
2.
3.
4.
diatomic molecules
compounds
ionic compounds
atoms
25% 25% 25% 25%
o
ic
a
di
m
to
m
s
le
cu
e
l
m
co
ds
un
o
p
p
ni
io
om
cc
s
nd
ou
om
at
s
2000.20. Which of these is the correct name for KBr?
1.
2.
3.
4.
Potassium bromine
Potassium bromide
Potassium bromate
Potassium bromite
25% 25% 25% 25%
e
in
m
iu
ss
a
t
Po
om
br
m
iu
ss
a
t
Po
e
id
om
br
ta
Po
m
iu
ss
om
br
e
at
m
siu
s
ta
Po
ite
om
br
2000.21. Which of the following is a balanced equation?
1. C3H8(g) + O2(g) → CO2(g) +
H2O(g)
2. C3H8(g) + O2(g) → 3CO2(g) +
H2O(g)
3. C3H8(g) + 2O2(g) → 3CO2(g)
+ 4H2O(g)
4. C3H8(g) + 5O2(g) → 3CO2(g)
+ 4H2O(g)
2000.22.
1. FeCl3 + Na2CO3 →
Fe2(CO3)3 + NaCl
2. 2FeCl3 + 2Na2CO3 →
3Fe2(CO3)3 + 3NaCl
3. 2FeCl3 + 3Na2CO3 →
Fe2(CO3)3 + 6NaCl
4. 3FeCl3 + 2Na2CO3 →
3Fe2(CO3)3 + 6NaCl
2000.23 How many different elements are in
ammonium hydroxide (NH4OH) ?
25%
25%
7
25%
4
25%
3
2
3
4
7
2
1.
2.
3.
4.
2000.24. Which of the following best represents the
reaction between sulfuric acid and calcium hydroxide?
1. H2SO4 + Ca(OH)2 →
CaSO4 + H2O
2. HSO4 + CaOH → CaSO4
+ H2 O
3. H2SO4 + Ca(OH)2 →
CaSO4 + 2H2O
4. H2SO4 + 2Ca(OH)2 →
2CaSO4 + 3H2O
2000.25.
at
a
ea
cir
c
ul
a
rs
tru
uc
tu
r
st
r
ar
po
l
a.
..
ct
ur
e
nd
an
d
ct
ur
e
st
ru
an
d
r ip
..
.
tr.
.
do
...
a
nd
ea
lin
ea
r
4.
uc
tu
r
3.
st
r
2.
bent structure and a double
bond
linear structure and a triple
bond
polar structure and a triple
bond
circular structure and an
ionic bond
be
nt
1.
25% 25% 25% 25%
2000.26. The name for NH4F is—
1. ammonia fluoride
2. ammonium fluoride
3. nitrogen tetrahydrogen
fluoride
4. ammonium fluorine
in
e
flu
or
um
on
i
m
am
en
ni
tro
g
. ..
ge
n
ah
yd
ro
te
tr
on
i
m
am
am
m
on
i
um
af
lu
flu
or
or
id
id
e
e
25% 25% 25% 25%
2000.27. The electron configuration for phosphorous is
1s22s22p63s23p3.What is the Lewis electron dot diagram
for phosphorous?
1.
25%
25% 25%
25%
2.
3.
4
eC
ho
i
ce
3
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
2
ce
ho
i
eC
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
1
4.
2000.28. Cobalt, a transition metal, can have an oxidation number of
either 2+ or 3+. Which of these represents the two possible chemical
formulas for the chemical combination of cobalt with oxygen?
25%
25%
Co
O
,C
o3
O2
o3
O2
o3
O2
25%
3,
C
Co
O
,C
o2
O3
25%
Co
2O
3,
C
CoO, Co2O3
CoO3, C o3O2
Co2O3, C o3O2
CoO, Co3O2
Co
O
1.
2.
3.
4.
2000.29.
Which statement describes the above equation?
1. Magnesium transfers an
electron to each atom of
the iodine molecule.
2. The iodine molecule
transfers two protons to
magnesium.
3. Magnesium shares an
electron with iodine.
4. Iodine becomes a free
monatomic element
fre
e.
..
el
...
n
Io
di
n
eb
m
ec
om
sh
ar
es
a
es
a
e
ec
ul
ag
ne
siu
M
ne
io
di
Th
e
M
ag
ne
siu
m
m
ol
tra
ns
fe
rs
tra
an
n.
..
.. .
25% 25% 25% 25%
2000.30. Sodium iodide exhibits what type of bond?
lic
25%
M
et
al
og
en
25%
Hy
dr
en
t
25%
Io
ni
c
25%
Covalent
Ionic
Hydrogen
Metallic
Co
va
l
1.
2.
3.
4.
2000.31. Which of the following reactions is a
decomposition reaction?
1.
2.
3.
4.
S8 + 8O2 → 8SO2
O2 + 2H2O → 2H2O2
2KClO3 → 2KCl + 3O2
2Na + 2AgCl → 2NaCl
+ 2Ag
2000.32. Which of the following reactions is a
neutralization reaction?
1.
2.
3.
4.
2AgNO3 + Cu → Cu(NO3)2
+ 2Ag
KOH + HNO3 → KNO3 +
H2O
C + O2 → CO2
4Fe(OH)2 + 2H2O2 →
4Fe(OH)3
2000.33. Which of the following reactions is an
example of a single-replacement reaction?
1. 2AgNO3 + Cu →
Cu(NO3)2 + 2Ag
2. NaOH + HCl → NaCl +
H2O
3. CO2 → C + O2
4. 4Fe(OH)2 + O2 →
4Fe(OH)3
2000.34. When seltzer tablets are placed in a glass of water,
they fizz as they release a gas. To increase the speed that gas is
released from each tablet, it would be best to increase the —
er
at
w
ft
he
dn
es
so
ha
r
am
th
e
of
re
ou
nt
o
w
fw
at
er
as
s
gl
th
e
of
te
m
pe
ra
tu
um
e
at
er
25% 25% 25% 25%
volume of the glass
temperature of the water
amount of water
hardness of the water
vo
l
1.
2.
3.
4.
2001.2. Which is an example of a synthesis reaction?
1. HCl + KOH → KCl +
H2O
2. Pb(NO3)2 + 2HBr →
PbBr2 2HNO3
3. C + O2 → CO2
4. Mg + H2SO4 → MgSO4
+H2
2001.3.
25%
25%
25%
Al
2O
3
3M
g+
Al
3O
2
6M
g+
+3
O2
2
g3
Al
M
g3
Al
2O
3
2Mg3Al2O3
Mg3Al2 + 3O2
6Mg + Al3O2
3Mg + Al2O3
2M
1.
2.
3.
4.
25%
2001.5. Which is the correct formula for iron (III) sulfate?
Fe
2(
S
O3
)3
25%
Fe
2(
S
25%
O4
)3
25%
Fe
SO
4
O4
)2
Fe2(SO4)2
FeSO4
Fe2(SO4)3
Fe2(SO3)3
Fe
2(
S
1.
2.
3.
4.
25%
2001.6. Which of these represents the empirical formula and
the molecular formula, respectively, for a given
organic compound?
25%
CH
3
an
d
C3
H1
2
C2
H2
25%
an
d
CH
2
an
d
CH
C2
H2
an
d
25%
CH
4
25%
CH and C2H2
CH and CH4
CH2 and C2H2
CH3 and C3H12
CH
1.
2.
3.
4.
2001.8.
se
be
ca
u
se
Be
ak
er
B
be
ca
u
of
of
a
of
se
Be
ak
er
A
be
ca
u
a
h.
..
c. .
.
in
nc
.. .
of
i
se
ak
er
B
4.
Be
3.
be
ca
u
2.
Beaker A because of increased
surface area
Beaker B because of
increased surface area
Beaker A because of a higher
concentration level
Beaker B because of a higher
concentration level
Be
ak
er
A
1.
h.
..
25% 25% 25% 25%
2001.22. A compound has 50% sulfur and 50% oxygen.
What is its empirical formula?
25%
25%
25%
SO
2
SO
3
S2
O4
SO4
S2O4
SO3
SO2
SO
4
1.
2.
3.
4.
25%
2001.25.
re
...
en
t
ac
em
re
ac
t io
n
n
ad
ou
bl
ere
pl
po
s it
io
ic
ec
om
ad
ex
ot
he
rm
an
en
do
th
er
m
ic
re
ac
tio
n
re
ac
t io
n
25% 25% 25% 25%
an endothermic reaction
an exothermic reaction
a decomposition reaction
a double-replacement
reaction
an
1.
2.
3.
4.
2001.29. Which of the groups below has the electron dot structure shown above?
1.
2.
3.
4.
25% 25% 25% 25%
Noble gases
Halogens
Alkali metals
Transition elements
e
bl
No
s
se
ga
s
en
og
l
Ha
k
Al
al
im
a
et
ls
an
Tr
t
en
si
n
t io
em
el
s
2001.34.
W
at
e
or
id
ch
l
m
So
di
u
er
25% 25%
s
ys
ta
l
cr
Iro
n
og
en
ga
s
Hydrogen gas
Iron crystals
Sodium chloride
Water
Hy
dr
1.
2.
3.
4.
25% 25%
2001.36. A catalyst accelerates a chemical reaction because the --
re
ac
. ..
c..
.
re
of
th
e
he
te
m
de
cr
pe
ra
tu
ea
se
st
of
th
e.
..
ys
t
al
ca
t
ac
t iv
at
io
n
en
er
gy
he
. ..
ea
se
st
de
cr
4.
ys
t
3.
25% 25% 25% 25%
al
2.
catalyst decreases the number
of collisions in a reaction
activation energy of the
reaction is lowered in the
presence of a catalyst
catalyst decreases the
concentration of the reactants
temperature of the reaction
increases due to the catalyst
ca
t
1.
2001.37. A compound is composed of 58.8% C, 938% H,
and 31.4% O, and the molar mass is 102 g/mol.
What is the molecular formula for this compound?
1.
2.
3.
4.
C2H10O3
C5H5O3
C5H10O2
CH3O3
25%
3
0O
1
H
C2
25%
3
5O
H
C5
25%
2
0O
1
H
C5
25%
3
3O
H
C
25%
M
et
al
ox
i
25%
Ai
r
25%
og
en
25%
Hy
dr
Oxygen
Hydrogen
Metal oxide
Air
Ox
yg
en
1.
2.
3.
4.
de
2001.40.
2001.44. If the temperature of a reaction is increased, the
reaction proceeds at a much quicker rate because the -1. activation energy
increases
2. energy of the products
increases
3. frequency of collisions
between reactants
increases
4. energy of the activated
complex increases
lli
yo
ft
at
ed
...
he
co
en
er
g
of
en
cy
fre
qu
ac
t iv
sio
ns
.. .
ts
.. .
du
c
pr
o
he
yo
ft
en
er
g
ac
t iv
at
io
n
en
er
gy
in
cr
ea
se
s
25% 25% 25% 25%
2001.45. The formula H2SO4 is representative of which of the following?
po
un
d
ac
id
co
m
An
A
ys
t
ta
l
ca
ba
se
25% 25% 25% 25%
A catalyst
A base
An acid
An organic compound
An
or
ga
n
ic
A
1.
2.
3.
4.
2001.46. Which compound contains both ionic and covalent bonds?
25%
NH
3
25%
CH
4
gB
r
2
25%
M
NH4Cl
MgBr2
CH4
NH3
NH
4C
l
1.
2.
3.
4.
25%
2001.48.
e
e
rb
on
at
ca
Co
pp
er
(
II )
ch
r
c iu
m
Ca
l
m
Ba
r iu
om
bo
rm
at
id
e
or
id
ch
l
iu
m
on
m
Ammonium chloride
Barium bormide
Calcium chromate
Copper (II) carbonate
Am
1.
2.
3.
4.
e
25% 25% 25% 25%
2002.3. Which of the following equations is balanced?
1.
H2SO4+ 2NaOH→Na2SO4
+ H2O
CH4+ Cl2→CH2Cl2 + HCl
H2O + MgO → Mg(OH)2
Al(OH)3 + H3PO4 →
AlPO4 + 2H2O
2.
3.
4.
1
2
3
4
5
2002.7. The system that show a decrease in entropy
(disorder) is ___
1. Air escaping from a
tire
2. Snow melting
3. Salt dissolving in water
4. Water freezing
1
2
3
4
5
g
er
fre
ez
in
er
W
at
at
w
n
ng
i
vi
iss
ol
Sn
ow
m
td
Sa
l
Ai
r
es
ca
pi
n
gf
ro
m
at
ir e
el
tin
g
25% 25% 25% 25%
2002.9. A catalyst is a substance used in chemical
reactions to--
1
2
3
4
5
...
eq
ui
li
br
iu
m
ft
he
eo
ra
t
th
e
ng
e
Ch
a
In
cr
ea
se
th
e
co
lli
s io
ns
be
t..
.
...
Pr
ov
i
de
a
hi
g
4.
ct
iva
t
3.
he
ra
2.
t..
.
25% 25% 25% 25%
Provide a higher activation
energy pathway.
Decrease collisions
between reactant
molecules
Increase the rate of the
reaction
Change the equilibrium to
favor products
De
cr
ea
se
1.
2002.13. Which reaction type best describes this
reaction? Zn + CuSO4→Cu + ZnSO4
Combination
Decomposition
Single replacement
Combustion
2
3
4
5
bu
st
io
n
bi
n
Co
m
1
Co
m
n
De
co
m
po
s it
io
n
Sin
gle
re
pl
ac
em
en
t
25% 25% 25% 25%
at
io
1.
2.
3.
4.
2002.15. This diagram of a chemical reaction shows
that the reaction is___
2
3
4
5
25%
lib
r iu
m
le
25%
At
eq
ui
Ex
ot
h
ot
he
rm
En
d
1
25%
er
m
ic
25%
Re
ve
rs
ib
Endothermic
Exothermic
Reversible
At equilibrium
ic
1.
2.
3.
4.
2002.16. How many atoms are represented in this formula?
1
2
3
4
5
25%
25%
29
25%
28
5
8
28
29
5
1.
2.
3.
4.
25%
8
Ni(C2H3O2)4
2002.20. Which of these reactions shows simple chemical decomposition?
1.
2.
3.
4.
1
H2 + I2 →2HI
2NsCl→ 2Na + Cl2
NaF + HCl →HF + NaCl
I2 + 2NaCl→2NaI + Cl2
2
3
4
5
2002.25. The Lewis electron dot system represents
electrons in the __
1.
2.
3.
4.
Outer energy level
Inner level
Middle level
Core level
25% 25% 25% 25%
O
1
2
3
4
5
e
ut
ne
re
y
rg
le
l
ve
In
ne
ev
rl
el
M
d
id
le
le
ve
l
C
e
or
le
l
ve
2002.26. The correct name for MgI2 is __
1. Magnesium iodide
2. Magnesium iodite
3. Magnesium (II)
iodide
4. Magnesium
diiodide
2
3
4
5
M
ag
ne
si
um
di
io
d
io
d
(II
)
id
e
ite
si
um
M
ag
ne
ag
ne
si
um
io
d
id
e
io
d
M
si
um
ag
ne
M
1
id
e
25% 25% 25% 25%
2002.35. The empirical formula for ethyne (C2H2) is----
2
3
4
5
2H
25%
C
2
2H
2
C
C
1
25%
H
25%
25%
C
CH
C2H2
CH2
C2H
H
1.
2.
3.
4.
2002.36. When this equation is correctly balanced, the
coefficient of the AlCl3 will be----
1
2
3
4
5
25%
25%
6
25%
4
25%
2
1
2
4
6
1
1.
2.
3.
4.
2002.42 The type of bond found in magnesium chloride is
2
3
4
5
M
et
al
lic
25% 25%
ni
c
po
la
r
N
on
al
en
ov
C
1
25%
Io
Covalent
Nonpolar
Ionic
Metallic
t
1.
2.
3.
4.
25%
2002.45. In this reaction, a cloudiness at completion due to colloidal suspension of
sulfur appears. If the reaction is carried out at various temperatures, at which
temperature would it proceed at the fastest rate?
2
3
4
5
°C
25%
50
°C
25%
40
20
1
25%
°C
25%
30
20°C
30°C
40°C
50°C
°C
1.
2.
3.
4.
2002.46. A heated liquid placed in a closed container
will vaporize until----
1
2
3
4
5
is
...
rp
re
s
su
re
fl
iq
ui
d.
..
ul
..
po
va
e
Th
Th
e
nu
he
m
be
liq
ui
ro
d
m
ol
ec
...
ee
tw
be
ry
ll
t
A
4.
un
da
3.
bo
2.
25% 25% 25% 25%
e
The boundary between
liquid and vapor
disappears
All the liquid molecules
become vapor molecules
The number of liquid
molecules vaporizing
equals the number of
vapor molecules
condensing
The vapor pressure is
greater than the
atmospheric pressure
Th
1.
2002.48. To indicate the number of atoms of each element
present in a molecular compound, scientists use---
Roman numerals
Superscripts
Prefixes
Subscripts
2
3
4
5
ts
s
bs
cr
ip
ix
e
Su
rs
c
pe
Su
nu
om
an
R
1
Pr
ef
rip
ts
25% 25% 25% 25%
m
er
al
s
1.
2.
3.
4.
2002.49. The correct name for the compound CCl4 is-1. Carbon
tetrachloride
2. Carbon chloride
3. Monocarbon
chloride
4. Tetracarbon
monochloride
2
3
4
5
m
on
oc
h.
..
rid
e
ch
lo
bo
n
ca
r
tr
a
Te
M
on
oc
ar
bo
n
n
ch
lo
lo
r id
ar
bo
C
te
tr
ac
h
n
ar
bo
C
1
rid
e
e
25% 25% 25% 25%
2003.3. The coefficients of the correctly balanced equation for
the reaction illustrated are ____H2O→___H2+ ___O2
2
3
4
5
2,
1
25%
2,
1,
2
25%
2,
1,
1
25%
1,
2
25%
1,
1,1,1
1,1,2
2,1,2
2,2,1
1,
1
1.
2.
3.
4.
2003.4. Elements from which two groups in the periodic table would
most likely combine with each other to form an ionic compound?
2
3
4
5
17
an
d
17
an
d
an
d
16
an
d
1
1
25%
18
25% 25%
17
25%
1
1 and 2
16 and 17
1 and 17
17 and 18
2
1.
2.
3.
4.
2003.5. The diagram is a potential energy curve for a reaction. Which
number represents the effect of a catalyst on the reaction?
1.
2.
3.
4.
1
2
3
4
25%
1
1
2
3
4
5
25%
2
25%
25%
3
4
2003.8. In chemical compounds, covalent bonds form when
1
2
3
4
5
.
ar
..
on
s
al
i
s
Tw
o
of
ir s
Pa
no
nm
et
el
e
ar
e
ct
ro
n
co
ar
e.
..
..
m
pl
e.
...
ity
at
iv
El
ec
t
ro
ns
ro
ne
g
4.
ec
t
3.
el
2.
25% 25% 25% 25%
e
The electronegativity
difference between two
atoms is very large
Electrons are completely
transferred between two
metals
Pairs of electrons are
shared between two
nonmetal atoms
Two nonmetal ions are
attracted to each other by
opposite charges
Th
1.
2003.14. __AgNo3 +__AlCl3→__AgCl + __Al(NO3)3
Which of these sets of coefficients will balance this equation?
1.
2.
3.
4.
25%
3,3,2,1
3,1,3,1
1,6,1,9
9,3,3,3
3
3,
1
2
3
4
5
,1
,2
25%
1
3,
,1
,3
25%
6
1,
,9
,1
25%
3
9,
,3
,3
2003.15. The formula for lithium nitride is___
1.
2.
3.
4.
LiN
Li3N
Li3N3
NLi3
25%
Li
1
2
3
4
5
N
25%
Li
3N
25%
3
Li
N3
25%
N
3
Li
2003.18. The correct structural formula for C2H4 is----
1
2
3
4
5
25%
25%
J
25%
H
25%
G
F
G
H
J
F
1.
2.
3.
4.
2003.20. What type of reaction does this illustration
represent?
1.
2.
3.
Decomposition
Synthesis
Singlereplacement
Doublereplacement
4.
25% 25% 25% 25%
D
1
2
3
4
5
ec
si
po
om
n
tio
Sy
he
nt
s
si
ng
Si
ep
-r
le
c
la
en
em
D
ou
t
e
bl
p
-re
c
la
en
em
t
2003.27. If the diagram were the correct representation for the Lewis
structure of a molecule, then the X would be representative of the
element----
2
3
4
5
lfu
r
en
25%
Su
25%
itr
og
uo
rin
Fl
xy
O
1
25%
e
25%
N
Oxygen
Fluorine
Nitrogen
Sulfur
ge
n
1.
2.
3.
4.
2003.29. Chlorine and bromine are in the same family in the periodic table. According
to the information in the table, what would be the correct formula for
sodium bromate?
ClO3-
N
1
2
3
4
5
aB
rO
3
Chlorate
25%
N
ClO4-
Br
O
3
Perchlorate
a3
CIO2-
25%
N
Chlorite
25% 25%
Br
O
CIO-
a2
Hypochlorite
N
NaBrO
Na2BrO
Na3BrO3
NaBrO3
Formula
aB
rO
1.
2.
3.
4.
Name
2003.31. When naming a transition metal that has more than one
oxidation number, the numeric value of the oxidation number is
indicated by a
Roman numeral
Greek prefix
Subscript
Suffix
2
3
4
5
ffi
x
Su
t
cr
ip
bs
k
re
e
G
nu
om
an
R
1
Su
pr
ef
ix
25% 25% 25% 25%
m
er
al
1.
2.
3.
4.
2003.32. A compound is composed of 85.64% carbon and 14.36%
hydrogen. The compound has a formula mass of 42.08 grams. What is
the molecular formula?
1.
2.
3.
4.
CH2
C3H6
C2H4
C2H18
25%
C
H
25%
2
C
6
3H
25%
C
25%
4
2H
C
18
2H
2003.34. Which of the following is the correct molecular
shape of CH4?
Te
tr
a
he
d
ra
l
al
Py
ra
m
id
r
ne
a
Li
en
t
Bent
Linear
Pyramidal
Tetrahedral
B
1.
2.
3.
4.
25% 25% 25% 25%
2003.36. Fe + CuCl2→ FeCl2 + Cu
The type of reaction represented by the above equation is
Single-replacement
Double-replacement
Synthesis
Decomposition
om
po
si
tio
n
si
s
nt
he
D
ec
Sy
-re
p
bl
e
ou
D
ng
l
ere
p
la
c
la
c
em
en
em
en
t
t
25% 25% 25% 25%
Si
1.
2.
3.
4.
2003.42. A balanced chemical equation has equal numbers of atoms of
each type on both sides of the equation. This illustrates the principle of
1. Conservation of
energy
2. Conservation of
mass
3. Action and reaction
4. Natural selection
A
tio
n
io
n
le
c
se
at
ur
al
N
ct
io
n
an
d
io
n
va
t
se
r
on
C
re
m
of
en
of
io
n
va
t
se
r
on
C
ac
t
as
s
er
gy
25% 25% 25% 25%
2003.47. Which of the following containers of water best shows
dynamic equilibrium between vapor and liquid?
25%
25%
D
25%
C
25%
B
A
B
C
D
A
1.
2.
3.
4.
2004.4. Which of these is the general formula
for a double-replacement reaction?
A.
B.
C.
D.
A + B → AB
AB + XY → BA + YX
AB + XY → AY + XB
A + B + XY → AX + BY
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
19
20
2004.5. The correct formula of an ionic compound
containing Al3+ and CO3 2- is
A.
B.
C.
D.
AlCO3
Al(CO3)3
Al2(CO3)3
Al3(CO3)2
25%
C
Al
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
O3
15
25%
(C
Al
)3
O3
16
25%
C
2(
Al
17
)3
O3
18
25%
C
3(
Al
)2
O3
19
20
2004.8. Which of the following is the balanced
chemical equation for the reaction shown above?
A.
B.
C.
D.
Al + H2SO4 → Al2(SO4)3 + H2
2Al + 3H2SO4 → Al2(SO4)3 3H2
2Al + 3H2SO4 → Al2(SO4)3 + H2
2Al + H2SO4 → Al2(SO4)3 + H2
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
19
20
2004.11. The figure below shows a compound containing hydrogen
(H) and an unknown element Z. To which group on the periodic
table does element Z belong?
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
25%
17
18
25%
16
25%
14
25%
15
13
14
15
16
13
A.
B.
C.
D.
19
20
2004.13. Which of the following is the name of
the molecule PCl3?
A. Phosphorus
trichloride
B. Phosphorus chloride
C. Potassium
trichloride
D. Potassium chloride
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
r id
e
id
e
ch
lo
lo
r
17
siu
m
Po
ta
s
siu
m
tri
ch
sc
hl
Po
ta
s
Ph
os
ph
or
u
Ph
os
ph
or
u
st
r ic
hl
o
rid
or
id
e
e
25% 25% 25% 25%
18
19
20
2004.19. The appropriate model for a
decomposition reaction is 1.
25%
25% 25%
25%
2.
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
4
eC
ho
i
ce
3
ce
17
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
ho
i
eC
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
1
4.
2
3.
18
19
20
2004.25. The formula for dinitrogen tetroxide is
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
25%
NO
25%
N2
O2
25%
N3
O3
N2O4
N3O3
N2O2
NO
N2
O4
A.
B.
C.
D.
25%
18
19
20
2004.30. What is the correct Lewis dot structure for arsenic?
1.
25%
2.
25% 25%
25%
3.
4.
ur
ct
i
P
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
e
oi
Ch
14
ce
1
ur
ct
i
P
15
e
oi
Ch
ce
2
ur
ct
i
P
16
e
oi
Ch
17
ce
3
ur
ct
i
P
18
e
oi
Ch
ce
19
4
20
2004.31. The empirical formula for a substance is CH2. If the molecular
mass of the substance is 56, the molecular formula is —
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
25%
C5
H1
0
25%
C4
H8
25%
C3
H
C2H4
C3H
C4H8
C5H10
C2
H4
A.
B.
C.
D.
25%
18
19
20
2004.32. Water molecules in a sealed jar are in a state of
dynamic equilibrium because water vapor molecules
H2O(l) ↔ H2O(g)
A. Are condensing at the
same rate that others are
evaporating
B. Cease to form when the
air in the jar becomes
saturated
C. Are evaporating faster
than they are condensing
D. Form only at high
temperatures
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
...
.
pe
t..
te
m
te
r
Fo
rm
on
ly
at
hi
gh
gf
as
tin
Ar
e
ev
ap
or
a
fo
rm
Ce
a
se
to
de
ns
in
co
n
Ar
e
1
he
n
w
ga
tt
he
th
e
sa
..
a.
.
25% 25% 25% 25%
17
18
19
20
2004.33. The diagram shows the structural formula of benzene. The
empirical and the molecular formulas of benzene are, respectively —
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
25%
CH
,C
6H
6
25%
6H
6
25%
CH
,C
3H
3
25%
C3
H3
,C
CH, C2H2
CH, C3H3
C3H3, C6H6
CH, C6H6
CH
,C
2H
2
A.
B.
C.
D.
19
20
2004.37. When the above equation is balanced, the
coefficient of the hydrochloric acid will be
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
17
18
25%
6
3
16
25%
4
2
3
4
6
25%
2
A.
B.
C.
D.
25%
19
20
2004.38. 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
B. Equilibrium shifts to
produce more
reactant
C. No change will occur
D. The reaction will
stop
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
st
op
ur
No
re
Th
e
ch
ac
t
an
ge
io
n
w
w
ill
ill
oc
c
pr
. ..
o
fts
t
sh
i
r iu
m
ilib
Eq
u
Eq
u
ilib
r iu
m
sh
i
fts
t
o
pr
. ..
25% 25% 25% 25%
14
15
16
17
18
19
20
2004.45. What shape does the molecule BF3 have?
na
r
l
ra
lp
Tr
ia
Te
go
na
tra
la
he
d
ea
Lin
Be
25% 25%
r
Bent
Linear
Tetrahedral
Triagonal planar
nt
A.
B.
C.
D.
25% 25%
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
19
20
2004.47. When the above equation is balanced, the
coefficients in order are
25%
A.
B.
C.
D.
25%
25%
25%
1, 1, 1, 1
2, 1, 1, 2
3, 1, 3, 2
3, 2, 2, 1
1
1,
1,
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
,1
15
1
1,
2,
16
,2
3
1,
3,
17
,2
18
2
2,
3,
19
,1
20
2004.49. Which graph represents the reaction shown above?
1.
2.
25%
25% 25%
25%
3.
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
4
eC
ho
i
ce
3
17
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
2
ce
ho
i
eC
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
1
4.
18
19
20
2005.2. The correct name for P2O5 is
A. Phosphorus (V)
pentoxide
B. Phosphorus oxide
C. Phosphorus (II)
oxide
D. diphosphorus
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
us
di
p
ho
sp
ho
r
de
s(
II)
ox
i
so
xi
Ph
os
ph
or
u
Ph
os
ph
or
u
Ph
os
ph
or
u
s(
V)
pe
n
to
xid
e
de
25% 25% 25% 25%
18
19
20
2005.6. Which set of coefficients will balance this equation?
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
25%
3,
6,
3,
2
25%
2,
6,
2,
3
25%
2,
3,
2,
6
1,3,1,1
2,3,2,6
2,6,2,3
3,6,3,2
1,
3,
1,
1
A.
B.
C.
D.
25%
19
20
Using the table, what is the correct formula for
ammonium phosphate?
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
O4
)3
25%
(P
PO
2(
(N
H4
)
NH
4P
O
1
25%
NH
4
25%
3P
O4
25%
(N
H4
)
NH4PO4
(NH4)2(PO4)3
(NH4) 3PO4
NH4 (PO4) 3
4
A.
B.
C.
D.
4)
3
2005.8.
19
20
2005.13. Which half-reaction represents reduction?
A.
B.
C.
D.
Cu0 → Cu+2 2eFe+2 → Fe+3 1eAg+1 → 1e- + Ag0
Ag0 → 1e+3 + 3e-
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
19
20
2005.16. Which of the following best represents the reaction
between hydrochloric acid and sodium hydroxide?
A. 2HCl + 2NaOH →
Na(OH)2 H2Cl2
B. HCl2 2Na(OH)2 →
2H2O + 2NaCl OHC. HCl + NaOH → H2O
NaCl
D. 2HCl + Na(OH)2 →
2H2 Na- + Cl + O2
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
19
20
2005.23. The type of formula that shows the
arrangements of atoms and bonds is called -
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
17
al
lar
cu
St
ru
M
16
25%
ct
ur
25%
ica
m
Ch
e
Em
pi
1
25%
l
25%
ol
e
Empirical
Chemical
Molecular
Structural
r ic
al
A.
B.
C.
D.
18
19
20
2005.31. What is the molecular formula of a substance that has
an empirical formula of C2H6 and a molecular mass of 58 g/mole?
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
25%
16
17
C6
H1
5
25%
C4
H1
0
25%
C5
H2
C2H5
C5H2
C4H10
C6H15
C2
H5
A.
B.
C.
D.
25%
18
19
20
2005.36. Which type of reaction is represented here?
A.
B.
C.
D.
Single replacement
Double replacement
Synthesis
Decomposition
25% 25% 25% 25%
a
pl
Sin
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
gle
re
14
m
ce
t
en
le
ub
o
D
15
re
a
pl
c
is
es
h
nt
Sy
t
en
m
e
16
17
18
io
s it
o
p
om
c
De
19
n
20
2005.38. The empirical formula for C6H12 is -
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
25%
CH
2
25%
CH
3
25%
C2
H4
C3H6
C2H4
CH3
CH2
C3
H6
A.
B.
C.
D.
25%
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
25%
16
17
18
25%
CI
O2
25%
CI
O
02
03
CIO
CIO2
2
A.
B.
C.
D.
25%
3
2005.40. Which completes the chemical equation above?
19
20
2005.41. An alien astronaut landed on Earth and created the periodic table
shown. The astronaut was trying to determine what type of bond would be
present in several compounds. The type of bond in a compound containing
G and E would be —
A. A metallic
bond
B. A nonmetallic
bond
C. A covalent
bond
D. An ionic bond
le
d
bo
n
ic
An
co
va
A
et
al
A
no
nm
io
n
nt
b
bo
lic
c
al
li
et
m
A
on
d
nd
bo
nd
25% 25% 25% 25%
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
19
20
2005.43. Calcium carbonate was placed in a flask on a balance, and dilute hydrochloric acid
was added. Carbon dioxide that was produced escaped from the flask. The total mass of
the flask and its contents was recorded every 10 seconds. The diagram above shows a plot
of the results. Between which of the following times was the reaction the fastest?
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
16
17
30
an
d
40
se
c
on
ds
25%
on
ds
se
c
an
d
20
an
d
10
15
25%
30
se
c
on
ds
se
c
10
d
an
0
1
25%
on
ds
25%
20
A. 0 and 10
seconds
B. 10 and 20
seconds
C. 20 and 30
seconds
D. 30 and 40
seconds
18
19
20
2005.47. Bonding between two elements of equal
electronegativity would be -
100% covalent
Primarily ionic
50% ionic
Metallic in character
te
r
M
et
al
lic
in
ch
50
%
ar
ac
io
ni
c
Pr
im
ar
ily
io
en
va
l
co
10
0%
ni
c
25% 25% 25% 25%
t
A.
B.
C.
D.
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
19
20
2005.48. The molar mass (gram formula mass) for the
compound sodium thiosulfate, Na2S2O3 is
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
16
17
m
gr
a
m
s
25%
25
4
15
3
15
gr
a
m
gr
a
m
gr
a
70
1
25%
s
25%
s
25%
15
8
70 grams
153 grams
158 grams
254 grams
s
A.
B.
C.
D.
18
19
20
2005.49. The correct formula for copper (I) bromide is
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
r2
Cu
B
Cu
B
1
25%
15
16
25%
17
25%
Cu
2B
r3
25%
Cu
2B
r
CuBr
CuBr2
Cu2Br
Cu2Br3
r
A.
B.
C.
D.
18
19
20
2005.50. Which of the following models a synthesis reaction?
1.
25%
25% 25%
25%
2.
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
4
eC
ho
i
ce
3
16
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
2
ce
ho
i
Pi
ct
ur
Pi
ct
ur
eC
4.
eC
ho
i
ce
1
3.
17
18
19
20
2007.4. Which of these represents a synthesis reaction?
1.
2.
3.
4.
F
G
H
J
25%
F
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
25%
25%
G
15
16
25%
J
H
17
18
19
20
2007.5. Sulfur is represented by the following Lewis dot
structure: Which of the elements has the same Lewis structure?
1.
2.
3.
4.
25% 25% 25% 25%
Chorine
Magnesium
Oxygen
Phosphorus
C
e
rin
o
h
M
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
n
ag
m
iu
es
O
n
ge
y
x
Ph
16
17
18
o
s
ru
o
h
sp
19
20
2007.8. The formula for magnesium chloride is
1.
2.
3.
4.
MgCl2
MnCl
Mg2Cl3
MnCl2
25%
M
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
l2
gC
25%
M
14
25%
l
nC
15
M
16
C
g2
25%
l3
M
17
l2
nC
18
19
20
2007.14. Hydrogen chloride can be formed from hydrogen and chlorine as
shown in the reaction. Chlorine and fluorine are located in the same group in
the periodic table. If the reaction were performed with fluorine instead of
chlorine, how many moles of H2 would be required to balance the equation?
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
25%
15
16
17
25%
8
25%
2
25%
4
1
2
4
8
1
1.
2.
3.
4.
18
19
20
2007.15. The correct name for Mg3(PO4)2 is--
1. Magnesium
phosphite
2. Trimagnesium
phosphate
3. Magnesium (III)
phosphate
4. Magnesium
phosphate
25% 25% 25% 25%
M
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
n
ag
m
iu
s
e
14
o
ph
te
hi
p
s
a
im
Tr
es
gn
m
iu
M
15
p
s.
ho
n
ag
..
m
iu
es
16
p
I)
(II
M
s.
ho
..
s
ne
g
a
17
m
iu
os
ph
18
at
ph
e
19
20
2007.20. Catalytic converters made of palladium (Pd) reduce automobile
pollution by catalyzing the reaction between unburned hydrocarbons and
oxygen. How does Pd increase the rate of this reaction?
1.
By cooling the
reactants
By splitting the
oxygen atoms
By giving the
hydrocarbons a
negative charge
By decreasing
the activation
energy
2.
3.
4.
25% 25% 25% 25%
B
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
y
co
g
in
ol
14
e
th
a
re
B
y
an
ct
s
15
ts
in
itt
pl
g
e
th
B
y
16
y
ox
.
g.
n
vi
gi
g
e
th
hy
B
17
y
...
oc
r
d
c
de
a
re
ng
si
18
e
th
ac
.
t..
19
20
2007.24. Which compound has a covalent bond?
1.
2.
3.
4.
CaI2
KBr
NaCl
NO
C
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
25%
25%
2
aI
K
15
B
25%
r
16
N
17
l
aC
25%
N
18
O
19
20
2007.27. If the difference in electronegativity between atoms
of different non-metals is small, the atoms, of the two nonmetals will most likely--1.
Form an ionic
bond
Form a
hydrogen bond
Form a
covalent bond
Form a metallic
bond
2.
3.
4.
25% 25% 25% 25%
F
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
m
or
an
n
io
ic
Fo
14
n
bo
rm
a
d
hy
15
en
og
r
d
F
n
bo
m
or
16
d
a
co
v
en
al
t
F
17
n
bo
m
or
d
a
et
m
18
lic
al
bo
nd
19
20
2007.28. The role of a catalyst is to affect--
1.
2.
3.
4.
Electronegativity
Heat content
Activation energy
Ionization energy
25% 25% 25% 25%
ec
El
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
g
ne
o
tr
iv
at
ity
H
ea
en
nt
o
tc
A
14
15
t
i
ct
16
tio
va
n
e
y
rg
e
n
n
io
at
Io
17
e
y
rg
e
n
z
ni
18
19
20
2007.29. Which of these best describes the difference between
the formulas for nitrogen monoxide and nitrogen dioxide?
Nitrogen monoxide has
one more atom of
nitrogen
Nitrogen dioxide has one
fewer atom of oxygen
Nitrogen monoxide has
one fewer atom of oxygen
Nitrogen dioxide has one
more atom of nitrogen
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
...
ha
xi
d
di
o
en
N
itr
og
m
on
ox
en
16
e
id
e
e
xi
d
N
itr
og
itr
og
15
...
...
ha
...
N
N
itr
og
en
m
on
ox
4.
di
o
3.
en
2.
25% 25% 25% 25%
id
e
1.
17
18
19
20
2007.33. What is the chemical name for the compound P3N5?
1.
Triphosphorus
nitride
Phosphorus (III)
nitride
Triphosphorus
pentanitride
Pentaphosphorus
trinitride
2.
3.
4.
25% 25% 25% 25%
i
Tr
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
os
ph
14
p
s
ru
ho
Ph
d
tri
ni
ph
os
15
e
us
or
I
(II
i
Tr
)
de
tri
ni
p
os
ph
16
s
ru
ho
pe
Pe
17
an
nt
...
s
ho
p
a
nt
us
or
h
p
18
...
rt in
19
20
2007.38. When the equation is correctly balance, the
coefficient of H2SO4 is--
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
25%
15
16
17
25%
4
25%
2
25%
3
1
2
3
4
1
1.
2.
3.
4.
18
19
20
2007.42. The reaction is which type of chemical reaction?
25% 25% 25% 25%
1. Single
replacement
2. Double
replacement
3. Synthesis
4. Decomposition
S
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
gl
in
e
p
re
14
c
la
en
em
D
o
t
le
ub
15
c
la
p
re
en
m
e
t
Sy
he
nt
s
si
D
16
17
ec
si
po
om
18
n
tio
19
20
2007.44. The subscript of oxygen in the product should be
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
25%
15
16
17
25%
20
25%
5
25%
10
2
5
10
20
2
1.
2.
3.
4.
18
19
20
2007.46. What are shared in covalent bonds?
1.
2.
3.
4.
Cations
Protons
Electrons
Anions
25%
C
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
ns
io
at
25% 25%
on
ot
Pr
15
s
16
E
ct
le
17
ns
ro
25%
A
18
on
ni
s
19
20
2007.49. What is the correct formula for aluminum
chloride?
25%
25%
25%
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
A
A
lC
l
l3
l2
C
l3
C
A
lC
A
1
l
AlCl3
Al3Cl
Al2Cl3
AlCl
l3
1.
2.
3.
4.
25%
16
17
18
19
20
2008.3. Which of the following is the correct name for
the compound MnF3?
A. Manganese fluoride
(III)
B. Manganese(III)
fluoride
C. Manganese(I)
fluoride (III)
D. Manganese(III)
fluoride(III)
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
III
)
or
id
e(
(II
I)
e(
III
)f
lu
e
or
id
f lu
(I)
ne
s
an
ga
M
M
an
ga
ne
se
ne
s
an
ga
M
M
an
ga
ne
s
ef
lu
or
id
e(
III
)f
lu
e(
I II
)
or
id
e
25% 25% 25% 25%
17
18
19
20
2008.6
25% 25% 25% 25%
A.
B.
C.
D.
A = 2, b = 1, c = 1, d = 2
A = 1, b = 2, c = 1, d = 2
A = 1, b = 1, c = 1, d = 1
A = 2, b = 2, c = 1, d = 1
A
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
=
b
2,
,c
=1
=
d
1,
A
14
=
=
2
b
1,
15
,c
=2
=
d
1,
A
16
=
=
2
b
1,
,c
=1
=
d
1,
A
17
=
=
1
b
2,
,c
=2
18
=
d
1,
=
1
19
20
2008.12. Sodium chloride conducts electricity when
dissolved in water. What type of bond is present in NaCl?
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
Io
ni
c
Hy
dr
Po
l
ar
og
e
le
nt
co
va
ale
co
v
lar
No
np
o
1
n
25% 25% 25% 25%
Nonpolar covalent
Polar covalent
Hydrogen
Ionic
nt
A.
B.
C.
D.
15
16
17
18
19
20
2008.14. Which of the following represents the
Lewis dot diagram of ammonia (NH3)?
1.
25%
2.
25% 25%
25%
3.
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
4
eC
ho
i
ce
3
16
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
2
ce
ho
i
eC
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
1
4.
17
18
19
20
2008.17. Which reaction is correctly balanced?
1.
25%
25% 25%
25%
2.
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
4
eC
ho
i
ce
3
17
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
2
ho
i
eC
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
4.
ce
1
3.
18
19
20
2008.20. According to the periodic table, Mg will most likely
react with elements in which of these groups?
A.
B.
C.
D.
1
3
17
18
25%
25%
1
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
25%
17
3
15
25%
16
17
18
18
19
20
2008.22. Which of the following shows the correct
number of atoms of each element in the formula
A. 1 magnesium atom, 2
nitrogen atoms, and 6
oxygen atoms
B. 1 magnesium atom, 2
nitrogen atoms, and 5
oxygen atoms
C. 1 magnesium atom, 1
nitrogen atoms, and 6
oxygen atoms
D. 1 magnesium atom, 1
nitrogen atoms, and 5
oxygen atoms
25% 25% 25% 25%
,2
a
1m
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
es
gn
m
iu
14
..
ni
om
at
a
1m
es
gn
15
.
,2
m
iu
..
ni
om
at
a
1m
es
gn
16
.
,1
m
iu
om
at
a
1m
17
..
ni
.
m
s iu
e
gn
18
,1
om
t
a
..
ni
19
.
20
2008.25. The general equation shown is a reaction that is an
A. Exothermic
decomposition
B. Endothermic
decomposition
C. Endothermic
synthesis
D. Exothermic synthesis
25% 25% 25% 25%
ic
ot
Ex
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
c
de
rm
he
14
i
sit
po
om
En
..
s.
po
on
er
th
o
d
sis
m
co
m
i
15
e
cd
En
r
he
t
do
16
ic
he
nt
y
s
m
ot
Ex
17
ic
es
th
n
sy
is
rm
he
18
19
20
2008.30. Which of these compounds is most likely to
contain an ionic bond?
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
25%
25%
Ca
Cl
2
SO
2
25%
CH
4
H2
SO2
CH4
CaCl2
H2
A.
B.
C.
D.
25%
17
18
19
20
2008.34. The chemical equation shown is an example of a
25% 25% 25% 25%
A. Single-replacement
reaction
B. Synthesis reaction
C. Decomposition
reaction
D. Doublereplacement
reaction
..
a.
-r
Si
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
le
ng
13
la
ep
m
ce
14
en
e
tr
sis
he
t
n
Sy
15
t
ac
re
n
io
m
co
De
16
io
s it
o
p
n
r
n
io
ct
a
e
tr
en
..
e.
m
e
ac
pl
re
el
ub
Do
17
18
19
20
2008.37. What is the name of NH4OH?
A. Ammonium
hydroxide
B. Nitrogen oxygen
hydride
C. Nitrogen hydroxide
D. Ammonium oxygen
hydride
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
hy
dr
id
n
Am
m
on
iu
m
ox
yg
e
hy
d
en
e
e
ro
xid
id
e
hy
dr
n
ox
yg
e
en
15
Ni
tro
g
Am
Ni
tro
g
m
on
iu
m
hy
dr
o
xid
e
25% 25% 25% 25%
16
17
18
19
20
2008.39. Which set of coefficients will balance this equation?
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
25%
17
25%
2,
6,
2
25%
2,
3,
2
25%
3,
2,
3
3, 1, 1
2, 3, 2
3, 2, 3
2, 6, 2
3,
1,
1
A.
B.
C.
D.
18
19
20
2008.41. What is the correct name for the compound P4O6?
A. Phosphoric acid
B. Phosphorus oxide
C. Phosphorus(IV)
oxide
D. Tetraphosphorus
hexoxide
25% 25% 25% 25%
e
e
id
de
xid
xid
xi
ac
o
o
o
c
x
)
s
ri
he
ru
(IV
ho
s
o
s
p
u
r
ru
ph
os
ho
os
ho
Ph
p
h
p
P
os
os
Ph
ph
a
tr
Te
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
17
18
19
20
2008.42. To which category does this reaction belong?
A.
B.
C.
D.
Synthesis
Decomposition
Single replacement
Double replacement
2008.47. What is the chemical formula for iron(II) phosphide?
1
2
3
4
5
6
7
8
9
10
11
12
21
22
23
24
25
26
27
28
29
30
31
32
13
14
15
16
Fe
P
17
18
25%
Fe
3P
2
25%
2
25%
Fe
2P
3
Fe2P
Fe2P3
FeP2
Fe3P2
Fe
2P
A.
B.
C.
D.
25%
19
20
2009.3. Which of the following is the correct Lewis
electron-dot diagram for the sodium atom?
1.
25%
2.
25%
25%
25%
3.
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
4
eC
ho
i
ce
3
16
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
2
ce
ho
i
eC
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
1
4.
17
18
19
20
2009.5.
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
17
,3
25%
,2
25%
2,
6,
4
0,
2,
2
1,
3,
2
1
25%
,3
25%
1,
2,
2
1, 3, 2, 3
0, 2, 2, 3
1, 2, 2, 2
2, 6, 4, 3
,3
1.
2.
3.
4.
18
19
20
2009.6. The correct formula for dinitrogen pentoxide is
1.
2.
3.
4.
N2O5
N5O
NO5
N2O
25%
O5
N2
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
25%
25%
O
N5
5
NO
15
16
17
25%
O
N2
18
19
20
2009.7. When ionic compounds are named, the name of a
monatomic anion will end in which of the following suffixes?
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
-it
15
16
25%
e
25%
17
-id
25%
e
25%
-a
te
-ic
-ite
-ate
-ide
-ic
1.
2.
3.
4.
18
19
20
2009.9. What is the name of the compound with the formula PCI5?
Phosphorus(I) chloride
Phosphorus(V) chlorine
Phosphorus pentachlorate
Phosphorus pentachloride
25% 25% 25% 25%
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
or
id
e
te
17
ta
c
sp
en
Ph
os
ph
or
u
sp
en
ta
c
hl
or
a
hl
hl
o
)c
Ph
os
ph
or
u
s(V
Ph
os
ph
or
u
Ph
os
ph
or
u
s(I
)
ch
lo
rid
r in
e
e
1.
2.
3.
4.
18
19
20
2009.11. Covalent bonds mainly occur between
1. Two nonmetallic elements
2. Two metallic elements
3. One metallic element and
one nonmetallic element
4. One metalloid and one
metallic element
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
e.
..
a.
.
on
id
lo
et
al
On
e
m
m
On
e
16
en
t
lic
et
al
m
o
Tw
15
an
d
lic
et
al
lic
et
al
m
no
n
o
Tw
1
el
em
el
el
em
en
ts
em
en
ts
25% 25% 25% 25%
17
18
19
20
2009.15. What is the empirical formula of the
compound with the molecular formula C6H12?
25%
25%
25%
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
17
C2
H6
CH
4
CH
2
CH
CH2
CH4
C2H6
CH
1.
2.
3.
4.
25%
18
19
20
2009.19. The product in a balanced reaction is 4Al2O3. Which of the
following shows the number of aluminum and oxygen atoms in 4Al2O3?
1. 8 atoms of aluminum and
3 atoms of oxygen
2. 6 atoms of aluminum and
3 atoms of oxygen
3. 8 atoms of aluminum and
12 atoms of oxygen
4. 6 atoms of aluminum and
7 atoms of oxygen
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
an
. ..
lu
m
in
um
an
. ..
fa
so
to
m
6a
8a
to
m
so
fa
lu
m
in
um
an
. ..
um
in
lu
m
fa
so
to
m
6a
8a
to
m
so
fa
lu
m
in
um
an
. ..
25% 25% 25% 25%
17
18
19
20
2009.21. Which of these is most likely to form between elements
transferring electrons to form oppositely charged particles?
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
d
ic
An
io
n
nt
b
le
co
va
bo
n
on
d
d
bo
n
en
A
hy
dr
og
all
i
et
m
A
1
A
A metallic bond
A hydrogen bond
A covalent bond
An ionic bond
cb
on
d
1.
2.
3.
4.
25% 25% 25% 25%
16
17
18
19
20
2009.29. One example of an ionic compound is
1.
2.
3.
4.
25%
25%
F2
2
CO
25%
25%
F2
CO2
HBr
MgCl2
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
r
HB
16
17
l
gC
2
M
18
19
20
2009.31. Le Chatelier’s principle describes what happens to a
system in equilibrium when a stress occurs. All of the
following could shift an equilibrium EXCEPT —
1. Changing the pressure on the
system
2. Changing the temperature of
the system
3. Changing the identity of the
catalyst
4. Changing the concentration
of one of the components
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
co
nc
en
tr
a.
..
of
.. .
en
t it
y
he
id
ng
t
he
ng
i
Ch
a
Ch
a
ng
i
ng
t
ng
t
ng
i
Ch
a
Ch
a
ng
i
ng
t
he
he
te
m
pr
es
pe
r
at
su
re
...
..
25% 25% 25% 25%
17
18
19
20
2009.32.
1.
2.
3.
4.
25% 25% 25% 25%
Precipitation
Neutralization
Single replacement
Double replacement
t io
it a
ic p
n
e
Pr
ra
ut
e
N
a
liz
a
pl
Si
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
le
ng
t
en
t
en
n
t io
re
17
m
ce
le
ub
o
D
a
pl
re
18
m
ce
19
20
2009.33. Hydrogen chloride is a covalent compound.
Which is a correct Lewis dot structure for HCI?
1.
25%
25%
25%
25%
2.
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
4
Pi
ct
ur
eC
ho
i
ce
3
ce
Pi
ct
ur
eC
ho
i
ce
ho
i
eC
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
1
4.
2
3.
17
18
19
20
2009.35. Which of the following equations is
balanced?
1.
25%
25%
25%
25%
2.
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
4
Pi
ct
ur
eC
ho
i
ce
3
ce
Pi
ct
ur
eC
ho
i
ce
ho
i
eC
Pi
ct
ur
Pi
ct
ur
eC
ho
i
ce
1
4.
2
3.
17
18
19
20
2009.37.
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
pl
-r e
Do
ub
le
15
n
17
De
co
m
po
s it
io
16
ac
e
Sy
nt
he
sis
m
ce
pl
a
-r e
gle
Sin
1
m
en
t
Single-replacement
Double-replacement
Synthesis
Decomposition
en
t
1.
2.
3.
4.
25% 25% 25% 25%
18
19
20
2009.43. What is the name for the compound CaSO4?
1.
2.
3.
4.
25% 25% 25% 25%
Calcium sulfate
Calcium sulfide
Calcium sulfur oxide
Calcium sulfur oxygen
l
Ca
m
c iu
l
su
te
fa
l
Ca
m
c iu
l
su
e
fid
Ca
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
um
lc i
su
17
id
ox
r
lfu
Ca
e
um
lc i
18
su
n
ge
y
x
ro
lfu
19
20