Exam 1 CHEM 1310 FS12 VER WHITE
Name_ _ _ _ _ _ _ _ _ _ __
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
1) Which one of the following compounds is chromiu~xide?
A) Cr302
8) Cr30
C) Cr204
D)Cr03
" E) 9203 '.
2) Oxygen forms an ion with a charge ~
A) +3
8) +2
C) +6
~
"'--""
E) -3 3) Which one of the following is the correct name for Mg(CI03h?
@agnesiUm chlorate
8) magnesium'chloroxide
C) magnesium perchlorate
D) manganese chlorate
E) manganese per9hlorate
4) The correct name for SO is _ A) sulfite 8) sulfur oxide C) SUlfOxi~lfur monoxide E) sulfate 5) Which one of the following polyatomic ions has the same charge as the hydroxide
ion?
~rate
8) phosphate C) sulfate D) carbonate E) ammonium
6) One side of a cube measures 1.55 m. What is the volume of this cube in cm3? A) 3.72
8) 155
C) 2.40
® 7 2 x 106
E) 2.40 X 104 7) What is the volume of a 12.2 g piece of metal with a density of 9.43 g/cm 3? 3
3
A) 1.022cm 8) 115cm
C) 12.2cm3 D)[email protected] ~Which
one of the following is not a physical property of water?
~ reacts rapidly with potassium metal to form potassium hydroxide.
8) Water exists in solid, liquid and gaseous forms.
C) It is clear and colorless.
D) It boils at 100°C at 1 atm pressure.
E) It freezes at 0 °C at 1 atm pressure.
9) Of the objects below. is the most dense. A) an object with a volume of 2.5 L and a mass of 12.5 kg
3
1
24
't"lf))n object with a volume of 3.91 x 10 nm and a mass of 7.93 x 10- ng
3
4
an object with a volume of 0.00212 m and a mass of 4.22 x 10 mg
3
3
D) an object with a volume of 13 dm and a mass of 1.29 x 10 9 E) an object with a volume of 139 mL and a mass of 93 9 Y>
10) Which s~.
. s below is the nitride ion? .,
C)Na+
D) NO£
A) N03
11)
E) NH/ (0.002843) (12.80184) == 0.00032 ~ 1.1 x 102 B} 113.736
C) 113.74
D} 113.73635 E) 113.7
12} The formula of ammonium carbonate is A}NH 4C02 B) (NH3hC04
C)N2(C03)~(NH4hC03 13) The name of PCb is
®hosphorus trichloride B) potassium chloride C} phosphorous(lIl} chloride D) trichloro potassium E) monophosphorous trichloride 14) Which formula
;:A);Fe2(S04h
'13) FeS03
C)Fe2(S03h
D} FeS
E) FeS04
Iname pair is incorrect? iron(lll) sulfide iron(ll) sulfite iron(lIl} sulfite iron(ll) sulfide iron(ll) sulfate 15) The number with the most significant zeros is
@50000001 B) 0.02500001 C) 0.00002510 D) 2.5100000 E) 2.501 x 10-7
16} Chromium and chlorine form an ionic compound whose formula is CrCh. The name
of this compound is
A) monochromium trichloride
~ chromium (III) chloride
C) chromic trichloride
D) chromium(lII) trichloride
E} chromium chlorine
17) A certain liquid has a density of 2.67 g/cm 3. What would the mass be (in kg) of 30.5
mL of this liquid?
8) 81.4
C) 11.4
®.0814
E) 0.0875
A) 0.0114
18) Of the following, __is the greatest mass.
9
A) 7.73 x 10-2 mg 8) 9.73 x 10 pg C) 6.83 X 10-5 ~.22
X
108 mg E) 4.23 x 108 pg
~ 3.337 g/cm3 =_._kg/m3
@337
8) 3.337 x 10-5 C) 333.7
D) 3.337 x 10-9 E) 0.3337
20) Intensive properties
depend on the amount of matter present. Extensive
~.
r erties _ _ depend on the amount of matter present.
C A)JIon't, do
·8) don't, don't C) do, don't D) dot, do E) do, sometimes