L..l\dm
3 FS12 (HEM
MULT!PLE CHO
the
I~
JlIon.
1310 Green ICE. Cho ose the
ijn~ JI'~rnative th
1) The correct name c
f'Al-.n
~DmO_
tb
a
est Completes the
lor KzS is
SWers
l ".fJotassium sulfide
---. E) dl'p t .
B) potassium sulfate o asslUm sulCate
C) potasSium disulfide
II
2) The Correct name for CCI4 ;s
A) carbon tetrachlorate 8)
E) carbon chloride
state~
0) pot assium bisulfide
----_~
carbon
perch'oratt"~ carbon tetrachloride OJ carbon chlorate
3) The correct name for HCl0 2 is A) perchloric acid
B) h
hI
ypoc orous acid
----C) chloric acid
.~ 0) hypoychloric acid ~hlorous acid
4) The correct formula of iron(''') bromide is,=, A) FeBr
B) Fe3Br3
fiY="~
))-eBr-3- -
C) Fe3Br
E) FeBrz
5) How many electrons does the A1 3+ ion possess?
A)6
B)13
C)O
§jio
0)16
6) A compound that is composed of carbon, hydrogen, and oxygen contains 70.6% C, 5.9% H,
and 23.5% 0 by mass. The molecular weight of the compound is 136 amu . What is the
molecular formula?
A) C9 H120
B
SH S02
7) A compound contains 38 .7% K, 13.9% N, and 47.4% 0 by mass. What is the empirical formula
of the compound?
A) K2 N0 3
B) K,;NO s
C) K2 N z0 3
0) KN0 2
U}>KN0 3
8) Magnesium and nitrogen react in a combination reaction to produce magnesium nitride:
3 Mg+ N2 ~ Mg3N2
In a particular experiment, a 9.27-g sample of N2 reacts completely. The mass of Mg consumed
is - - - - - g.
A) 16.1
B) 8.04
o
C) 13.9
E) 0 .92
1.4
9) Calcium carbide (CaC2) reacts with water to produce acetylene (C2H2):
CaC2 (5) + 2 H20 (g) ~
Ca{OHh (s) + C2H2 (g)
Production of 13 g of C2H2 requires consumption of
A)9.0
B)4.5
C}4.8
x 10
2
0) 4 .8
X
g of H20.
10-
2
Q; 18
10) Lead carbonate decomposes to give lead oxide and carbon dioxide:
PbC0 3 (s)
-7 PbO (s) + CO 2 (g) How many grams of lead oxide will be produced by the decomposition of 2.50 g of lead carbonate? A) 2.50
~ .09
B) 0.41
0) 2.61
E) 0.00936
11) A strong electrolyte is one that _ _ _ _ _ completely in solution. A) decomposes B) disappears ( sponizes
0) reacts
E) dissolves 0) acids
E) bases
12) All weak electrolytes are _ _ _ __
~olecular
C) ionic
B) salts
13) The balanced net ionic equation for precipitation of CaC0 3 when aqueous solutions of Li 2C0 3 and CaCI 2 are mixed is _ _ _ __ A) 2 Li+ (aq) + 2 CI-(aq) -7 2 LiCI (aq) B) Li 2C0 3 (aq) + CaCI 2 (aq) -72 LiCI (aq) + CaC0 3 (s) i'L)
2+ (aq) + CO/"(aq) -7
CaC0 3 (s)
0) Lt (aq) + Cr(aq) -7 LiCI (aq)
E) 2 It (aq) + CO/(aq) -7 Li 2C0 3 (aq)
14) Which ion(s) is/are spectator ions in the formation of a precipitate of AgBr via combining
aqueous solutions of CoBr2 and AgN0 3 ? A) N0 3- and B( B) C0 2+ and Ag+ C) B( ~02+ and N0 3­
E) N0 3­
15) Which of the following is soluble in water at 25°C? A) FeC0 3
C) Fe(OHh
B) Fe3(P04h
0) Fe E)
'@N 03h 16) When aqueous solutions of _ _ _ _ _ are mixed, a precipitate forms. A) Li 2C0 3 and Csi B
iBr2 and AgN0 3 C) K2S0 4 and CrCI 3 0) KOH and Ba(N0 3h E) Nal and KBr 17)Which one of the follow·
A) Ag 2C0 3
B) Fe(N0 3h
compounds is insoluble in water?
(" 1
nS
0) K2S0 4
E) Na2C03
18) Which of the following are strong acids?
1) HI
2) HN0 3
A) 1,3,4
B) 3,4
3) HF
C) 1, 2, 3,4
4) HBr
,2,4
E) 2,3,4
19) Which c ~und has the atom with the highest oxidation number?
A) AI(N0 2h ~ gS03
C) CaS
D) Na3N
E) NH 4 CI
20) Lithium and nitrogen react in a combination reaction to produce lithium nitride:
6Li (s) + N2(g)~
2 Li3N(S) (s)
In a particular experiment, -g samples of each reagent are reacted. The theoretical yield of
lithium nitride is
~
A) 17.6
B) -.5-2--~
3.58
E) 2.93
D) 8.7
21) The combustion of propane (C3H s) in the presence of excess oxygen yields CO 2 and H20:
C3Hs
+ 5 O2 ~ 3 CO 2+ 4 H20 :
When 7.3 g of C3Hs burns in the presence of excess O2, _ _ _ _ _ g of CO 2 is produced.
A) 2.4
C) 7.30
B) 0.61
2
(0/22
E) 8 x 10
22) A 3. 82-g sample of magnesium nitride is reacted with 7.73 g of water.
Mg 2 N3 + 3 H20
-7
2 NH3
+ 3 MgO
The yield of MgO is 3.60 g. What is the percen~n the reaction?
A) 94.5
B) 99 .9
C) 49.4
~ .8
E) 46.6
•