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nomenclature of simple compound | ionic compound MSC: Conceptual
52. How many oxygen atoms are there in one formula unit of Ca3(PO4)2?
A)
2
B)
4
C)
6
D)
8
E)
none of these
53. How many oxygen atoms are there in 4 formula units of Al2(CO3)3?
A)
9
B)
24
C)
36
D)
13
E)
39
54. The correct name for FeO is
A)
iron oxide
B)
iron(II) oxide
C)
iron(III) oxide
D)
iron monoxide
E)
iron(I) oxide
55. The correct name for Ca2+ is
A)
calcium
B)
calcium(II) ion
C)
calcium ion
D)
calcium(I) ion
E)
monocalcium ion
56. The correct name for V3+ is
A)
vanadide
B)
vanadite ion
C)
vanadium(III) ion
D)
vanadium(V) ion
E)
trivanadium ion
57. The correct name for P3– is
A)
phosphide ion
B)
phosphorus ion
C)
phosphorus(III) ion
D)
phospho(III) ion
E)
phosphite
58. What is the subscript of barium in the formula of barium sulfate?
A)
1
B)
2
C)
3
D)
4
E)
0
59. The formula for calcium bisulfate is
A)
Ca(SO4)2
B)
CaS2
C)
Ca(HSO4)2
D)
Ca2HSO4
E)
Ca2S
60. The formula for sodium dihydrogen phosphate is
A)
NaH2PO4
B)
Na(HPO4)2
C)
NaHPO4
D)
Na2HPO4
E)
Na2H2PO4
61. Which of the following is incorrectly named?
A)
Pb(NO3)2, lead(II) nitrate
B)
NH4ClO4, ammonium perchlorate
C)
PO43–, phosphate ion
D)
Mg(OH)2, magnesium hydroxide
E)
NO3–, nitrite ion
62. Which of the following is incorrectly named?
A)
SO32–, sulfite ion
B)
S2O32–, thiosulfate ion
C)
PO43–, phosphate ion
D)
ClO3–, chlorite ion
E)
CN–, cyanide ion
63. All of the following are in aqueous solution. Which is incorrectly named?
A)
H2SO4, sulfuric acid
B)
H2CO3, carbonic acid
C)
H3PO4, phosphoric acid
D)
HCN, cyanic acid
E)
HCl, hydrochloric acid
64. All of the following are in aqueous solution. Which is incorrectly named?
A)
HC2H3O2, acetic acid
B)
HBr, bromic acid
C)
H2SO3, sulfurous acid
D)
HNO2, nitrous acid
E)
HClO3, chloric acid
65. Which of the following pairs is incorrect?
A)
NH4Br, ammonium bromide
B)
K2CO3, potassium carbonate
C)
BaPO4, barium phosphate
D)
CuCl, copper(I) chloride
E)
MnO2, manganese(IV) oxide
66. Which of the following name(s) is(are) correct?
1.
sulfide, S2–
2.
ammonium chloride, NH4Cl
3.
acetic acid, HC2H3O2
4.
barium oxide, BaO
A)
all
B)
none
C)
1, 2
D)
3, 4
E)
1, 3, 4
67. Which metals form cations with varying positive charges?
A)
transition metals
B)
Group 1 metals
C)
Group 2 metals
D)
Group 3 metals
E)
metalloids
68. Three samples of a solid substance composed of elements A and Z were prepared. The first
contained 4.31 g A and 7.70 g Z. The second sample was 35.9% A and 64.1% Z. It was
observed that 0.718 g A reacted with Z to form 2.00 g of the third sample. Show that these
data illustrate the law of definite composition.
69. Explain how Dalton’s atomic theory accounts for:
a) the law of conservation of mass
b) the law of definite composition
c) the law of multiple proportion
70. Complete the following table.
Symbol
# Protons
# Neutrons
# Electrons
Net Charge
206Pb
31
38
3+
52
75
54
Mn2+
30
2+
71. Complete the following table.
Symbol
69Ga3+
Number of protons
34
Number of neutrons
46
Number of electrons
Atomic number
Mass number
Net charge
2–
72. Arsenopyrite is a mineral containing As, Fe, and S. Classify each element as metal,
nonmetal, or metalloid.
73. Write the symbol for each of the following elements.
a)
silver
_____________
b)
calcium
_____________
c)
iodine
_____________
d)
copper
_____________
e)
phosphorus
_____________
74. Write the names of the following compounds:
a)
FeSO4
________________
b)
NaC2H3O2
________________
c)
KNO2
________________
d)
Ca(OH)2
________________
e)
NiCO3
________________
75. Write the chemical formulas for the following compounds or ions.
a)
nitrate ion
_________
b)
aluminum oxide
_________
c)
ammonium ion
_________
d)
perchloric acid
_________
e)
copper(II) bromide
_________
76. How many atoms (total) are there in one formula unit of Ca3(PO4)2?
77. Al2(SO4)3
78. NH4NO3
79. NaH
80. K2Cr2O7
81. CCl4
82. AgCl
83. CaSO4
84. HNO2
85. N2O3
86. SnI2
87. sodium thiosulfate
88. iron(III) oxide
89. dichlorine heptoxide
90. cobalt(II) chloride
91. aluminum hydroxide
92. sulfurous acid
93. nitric acid
94. phosphoric acid
95. acetic acid
96. phosphorus trichloride
