NAME:_ __ __ __ __ _
EXAM 1 WS12 (HEM 1310 Version White
1) 3.337 g/cm 3 =_
A) 333.7
_ kg/m3 B) 3.337 x 10.5
C) 3.337
X
10-9 0) 0.3337 2) Which of the following compounds would you expect to be ionic?
A) H2 0
B) NH3
C) H2 0 2
O)SF 6
@
3) Which formula/name pair is incorrect? A) FeS03
iron(lI) sulfite B) FeS04
iron(") sulfate C)FeS
iron(lI) sulfide Q ) Fe2(S04h
iron(I") sulfi cte:::)
iron(lIl) sulfite
E) Fe2(S03h
4) A certain liquid has a density of 2.67 g / cm 3. What volume (in L) would 1340 g of this liquid occupy?
~~
B) 35.8
C) 50.2
0) 3.58
E) 1.99 x 10-3
0) chromium chlorine
E) monochromium trichloride
6) Which one of the following does not occur as diatomic molecules in elemental form?
~
B) bromine
C) hydrogen
0) nitrogen
E) oxygen
7) What is the ~ e compound formed between strontium ions and nitrogen ions?
A) SrN2
~
C) SrN
0) SrN3
E) Sr2N3
3
8) What is the density (in g/cm3) of a gold nugget that has a volume of 1.68 cm and a mass of 32.4 g?
A) 32.4
B) 0.0519
.-:.~:.=~c::-,--- milligra ms
) 1,000
10) The correct na
B) carbon perchlorate
C) carbon tetra chlorate
0) carbon chloride
E) carbon (IV) chloride
C) 54.4
C) 1 X 10-6
~
0) 10,000
E) 0.0184
E) none of the above
11) The density of silver is 10.5 g/cm 3. What would be the mass (in grams) of a piece of silver that occupies a volume of 23.6 cm 3? @
A) 2.25
0) 23 .6
C) 112
E) 0.445 12) The mineral pyrolusite is a compound of manganese-55 and oxygen-16. If 63% of the mass of pyrolusite is due to manganese, what is the em~la of pyrolusite? B) Mn20
A) MnO
~
C) Mn202
E)Mn203 13) Of the following, _ _is the smallest mass. A) 25 kg
B) 2.5
X
10
15
pg C) 2.5
X
10
10
ng~
2
E) 2.5 x 10- mg 14) All atoms of a given element have the same_
A) mass
C) density
0) number of neutrons
0) 1 X 108
E) 1 X 10.12
3
16) Osmium has a density of 22.6 g/cm . The mass of a block of osmium that measures 1.01 cm x 0.233 cm
x 0.648 cm is _ _ g.
3
A) 6.75 X 10
B) 6.75
X
10·3 ~
0) 148
E) 34.5
17) Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties? A) H, Li
B) C,O
C) Cs, Ba
~
E) Ga, Ge
18) Peed let the em pi ,;ea I foem u la of t he IonIe~t foems fcom magne slu m and fl uo,; ne. B) Mg2F2
A) Mg2F
19) 3.2 cm 3
== _
~
_
C) MgF
0) MgF2
E) Mg 2F3
C) 0.033
0) 33
E) 3.2 x 10.
.
L
B) 0.32
6
3
20) One si de of a cube measures 1.55 m. What is the volume of this cube in cm ?
(Ii 3.72 x ~ B) 155
C) 2.40
0) 3.72
4
E) 2.40 x 10
21) Consistent with vanadium being a transition metal, the name for VS0 4 should be A) vanadium sulfate B) vanadium sulfide C) vanadium sulfite Q) vanadium (ljjS ulfa~
E) vanadium sulfoxide