Ch. 2 Review - Chem2

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Exam
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) A certain mass of carbon reacts with 13.6 g of oxygen to form carbon monoxide. __________ grams of oxygen
would react with that same mass of carbon to form carbon dioxide, according to the law of multiple
proportions?
A) 27.2
B) 6.8
C) 25.6
D) 13.6
E) 136
D) HClO2
E) HClO4
D) Al(OH)3
E) AlOH
D) C4 H10
E) C2 H8
C) C9 H18
D) C10H20
E) C10H22
C) 9
D) 17
E) 11
C) 8
D) 15
E) 10
C) 53
D) 184
E) 124
D) 54
E) 118
2) __________ and __________ reside in the atomic nucleus.
A) Electrons, neutrons
B) Protons, electrons
C) Protons, neutrons
D) none of the above
E) Neutrons, only neutrons
3) What is the formula for perchloric acid?
A) HClO
B) HClO3
C) HCl
4) The formula for aluminum hydroxide is __________.
A) Al3 OH
B) Al2 O3
C) Al2 (OH)3
5) What is the molecular formula for propane __________ ?
A) C3 H8
B) C4 H8
C) C3 H6
6) What is the molecular formula for nonane __________ ?
A) C10H24
B) C9 H20
7) An atom of 17O contains __________ protons.
A) 25
B) 8
8) An atom of 15N contains __________ neutrons.
A) 22
B) 7
9) An atom of 131I contains __________ electrons.
A) 78
B) 131
10) The mass number of an atom of 118Xe is __________.
A) 172
B) 64
C) 110
1
11) The atomic number of an atom of 80Br is __________.
A) 35
B) 45
C) 73
D) 115
E) 80
12) An ion has 8 protons, 9 neutrons, and 10 electrons. The symbol for the ion is __________.
A) 19F+
B) 17Ne2+
C) 19F-
D) 17O2+
E) 17O2-
C) 13
D) 0
E) 16
13) How many electrons does the Al3+ ion possess?
A) 10
B) 6
14) Which atom has the largest number of neutrons?
A) calcium-40
B) chlorine-37
C) argon-40
D) phosphorous-30
E) potassium-39
15) Which isotope has 36 electrons in an atom?
80
78
Br
Se
A)
B)
35
34
34
Cl
17
C)
D)
80
Kr
36
E)
36
Hg
80
16) The gold foil experiment performed in Rutherford's lab __________.
A) utilized the deflection of beta particles by gold foil
B) was the basis for Thompson's model of the atom
C) led to the discovery of the atomic nucleus
D) proved the law of multiple proportions
E) confirmed the plum-pudding model of the atom
17) In the Rutherford nuclear-atom model, __________.
A) the light subatomic particles, protons and neutrons, reside in the nucleus
B) the three principal subatomic particles (protons, neutrons, and electrons) all have essentially the same
mass
C) the three principal subatomic particles (protons, neutrons, and electrons) all have essentially the same
mass and mass is spread essentially uniformly throughout the atom
D) mass is spread essentially uniformly throughout the atom
E) the heavy subatomic particles, protons and neutrons, reside in the nucleus
18) How many protons does the Br- ion possess?
A) 35
B) 34
C) 6
D) 8
E) 36
D) +1
E) +2
19) Predict the charge of the most stable ion of fluorine.
A) -2
B) +3
C) -1
2
20) Predict the charge of the most stable ion of potassium.
A) +3
B) -2
C) -1
D) +1
E) +2
C) 42
D) 420
E) 4.2
21) 420 ppm is the same as __________ Angstroms.
A) 0.42
B) 4200
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
22) The most metallic halogen is astatine.
23) the possible oxication numbers for gold are 1+ and 2+.
24) The formula for chromium (II) iodide is CrI2 .
25) H2 SeO4 is called selenic acid.
26) The correct name for Na3 N is sodium azide.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
27) The formula for zinc phosphate isZn3 (PO4 )2. What is the formula for cadmium arsenate?
A) Cd3 (AsO4 )2
B) Cd3 (AsO3 )4
C) Cd4 (AsO2 )3
D) Cd2 (AsO4 )4
E) Cd2 (AsO4 )3
D) NH4 SO3
E) (NH4 )2S
D) CO2 -
E) CO3 3-
D) HBr
E) HBrO2
D) MoCl4
E) Mo(ClO3)4
28) The name of the ionic compound (NH4 )3 PO4 is __________.
A) nitrogen hydrogen phosphate
B) triammonium phosphate
C) tetrammonium phosphate
D) ammonium phosphate
E) ammonia phosphide
29) What is the correct formula for ammonium sulfide?
A) NH3 S
B) (NH4 )2SO4
C) N2 S3
30) The formula of the carbonate ion is __________.
A) COB) CO2 2C) CO3 231) The formula of bromic acid is __________.
A) HBrO4
B) HBrO3
C) HBrO
32) The correct formula for molybdenum(IV) hypochlorite is __________.
A) Mo(ClO2)4
B) Mo(ClO4)4
C) Mo(ClO)4
3
33) Magnesium and sulfur form an ionic compound with the formula __________.
A) Mg2 S
B) Mg2 S3
C) Mg2 S2
D) MgS
E) MgS2
D) FeBr2
E) Fe3 Br
34) The correct formula of iron(III) bromide is __________.
A) Fe3 Br3
B) FeBr
C) FeBr3
35) The name of PCl3 is __________.
A) monophosphorous trichloride
B) potassium chloride
C) phosphorous(III) chloride
D) trichloro potassium
E) phosphorus trichloride
36) The correct name for H2 CO3 is __________.
A) carbonous acid
B) carbohydric acid
C) hydrocarbonate
D) carbonic acid
E) carbohydrate
37) The correct name for HClO2 is __________.
A) hypychloric acid
B) chloric acid
C) perchloric acid
D) chlorous acid
E) hypochlorous acid
38) The correct name for H2 SO3 is __________.
A) hydrosulfuric acid
B) sulfur hydroxide
C) hydrosulfic acid
D) sulfurous acid
E) sulfuric acid
4
39) The correct name for Al2O3 is __________.
A) aluminum oxide
B) dialuminum oxide
C) aluminum trioxide
D) dialuminum trioxide
E) aluminum hydroxide
40) The correct name for CCl4 is __________.
A) carbon chloride
B) carbon chlorate
C) carbon perchlorate
D) carbon tetrachloride
E) carbon tetrachlorate
41) The correct name for CaH2 is __________.
A) calcium hydroxide
B) hydrocalcium
C) calcium hydride
D) calcium dihydroxide
E) calcium dihydride
42) Calcium forms an ion with a charge of __________.
A) 0
B) -1
C) +1
D) -2
E) +2
43) Predict the empirical formula of the ionic compound that forms from magnesium and oxygen.
A) Mg3 O2
B) MgO
C) Mg2 O
D) Mg2 O2
E) MgO2
44) The correct name for SrO is __________.
A) strontium hydroxide
B) strontium dioxide
C) strontium peroxide
D) strontium monoxide
E) strontium oxide
45) What is the formula of the compound formed between strontium ions and nitrogen ions?
A) SrN
B) Sr3N2
C) Sr2N3
D) SrN3
E) SrN2
46) Predict the empirical formula of the ionic compound that forms from sodium and fluorine.
A) Na 2 F3
B) NaF
C) Na 2 F
5
D) NaF2
E) Na 3 F2
47) Iodine forms an ion with a charge of __________.
A) -1
B) +2
C) +1
D) -2
E) -7
D) -1
E) -3
48) Aluminum forms an ion with a charge of __________.
A) +1
B) +2
C) +3
49) Magnesium reacts with a certain element to form a compound with the general formula MgX. What would the
most likely formula be for the compound formed between potassium and element X?
A) K2 X2
B) K2 X
C) KX2
D) K2 X3
E) KX
D) -1
E) +2
50) The charge on the manganese in the salt MnF3 is __________.
A) +3
B) +1
C) -2
51) The formula of a salt is XCl2. The X-ion in this salt has 28 electrons. The metal X is __________.
A) V
B) Zn
C) Ni
D) Fe
E) Pd
52) When a metal and a nonmetal react, the __________ tends to lose electrons and the __________ tends to gain
electrons.
A) nonmetal, nonmetal
B) metal, metal
C) metal, nonmetal
D) nonmetal, metal
E) None of the above, these elements share electrons .
53) __________ typically form ions with a 2+ charge.
A) Alkali metals
B) Transition metals
C) Halogens
D) Alkaline earth metals
E) Chalcogens
54) The empirical formula of a compound with molecules containing 12 carbon atoms, 14 hydrogen atoms, and 6
oxygen atoms is __________.
A) C6 H7 O3
B) C12H14O6
C) C2 H4 O
6
D) CHO
E) CH2O
55) Oxygen is a __________ and nitrogen is a __________.
A) metalloid, metalloid
B) nonmetal, nonmetal
C) nonmetal, metalloid
D) metal, metalloid
E) nonmetal, metal
56) __________ are found uncombined, as monatomic species in nature.
A) Halogens
B) Noble gases
C) Alkali metals
D) Alkaline earth metals
E) Chalcogens
57) Potassium is a __________ and chlorine is a __________.
A) metal, nonmetal
B) metalloid, nonmetal
C) metal, metal
D) nonmetal, metal
E) metal, metalloid
58) Elements in Group 6A are known as the __________.
A) chalcogens
B) alkali metals
C) noble gases
D) halogens
E) alkaline earth metals
59) Elements in Group 7A are known as the __________.
A) chalcogens
B) alkaline earth metals
C) alkali metals
D) noble gases
E) halogens
7
60) Elements in Group 1A are known as the __________.
A) alkaline earth metals
B) chalcogens
C) alkali metals
D) halogens
E) noble gases
61) Horizontal rows of the periodic table are known as __________.
A) periods
B) groups
C) metals
D) nonmetals
E) metalloids
C) Al
D) Sn
E) K
D) groups
E) metals
62) Which metal forms cations of differing charges?
A) Cs
B) Ba
63) Vertical columns of the periodic table are known as __________.
A) nonmetals
B) metalloids
C) periods
64) Which pair of elements is most apt to form a molecular compound with each other?
A) barium, bromine
B) aluminum, oxygen
C) sulfur, fluorine
D) potassium, lithium
E) magnesium, iodine
65) The charge on the __________ ion is -3.
A) oxide
B) nitride
C) acetate
D) permanganate
E) sulfate
66) Which one of the following polyatomic ions has the same charge as the hydroxide ion?
A) phosphate
B) carbonate
C) sulfate
D) nitrate
E) ammonium
67) Which element forms an ion with the same charge as the ammonium ion?
A) chlorine
B) nitrogen
C) potassium
D) oxygen
E) calcium
68) When a fluorine atom forms the fluoride ion, it has the same charge as the __________ ion.
A) sulfite
B) sulfide
C) ammonium
8
D) nitrate
E) phosphate
69) Which species below is the nitride ion?
A) NO3 -
B) NO2 -
C) Na +
D) NH4 +
E) N 3-
C) SO2 -
D) H2 SO4
E) S2-
70) Which species below is the sulfite ion?
B) SO3 -
A) H2 S
71) The suffix -ide is used __________.
A) to indicate binary acids
B) for monatomic anion names
C) for monoatomic cations
D) for polyatomic cation names
E) for the name of the first element in a molecular compound
72) The formula for the compound formed between aluminum ions and phosphate ions is __________.
A) AlPO4
B) Al(PO4 )3
C) Al3 (PO4)3
D) AlP
E) Al2 (PO4)3
73) Which metal does not require to have its charge specified in the names of ionic compounds it forms?
A) Mn
B) Fe
C) Cu
D) Pb
E) Ca
D) 1A
E) 2A
74) Which group in the periodic table contains only nonmetals?
A) 2B
B) 8A
C) 6A
75) Which formula/name pair is incorrect?
A) Mn(NO2 )2
manganese(II) nitrite
B) Mn(NO3 )2
manganese(II) nitrate
C) Mg(NO3 )2
magnesium nitrate
D) Mg(MnO4 )2 magnesium permanganate
E) Mg3N2
magnesium nitrite
76) The element __________ is the most similar to strontium in chemical and physical properties.
A) At
B) Ba
C) Cs
D) Li
77) In the periodic table, the rows are called __________ and the columns are called __________.
A) cogeners, families
B) staffs, families
C) rows, groups
D) octaves, groups
E) periods, groups
9
E) Rb
78) Which pair of atoms constitutes a pair of isotopes of the same element?
19
19
14
14
20
21
14
X
X
X
X
X
X
X
A)
B)
C)
D)
10
9
6
7
10
11
6
12
X
6
E)
17
X
9
79) The atomic number indicates __________.
A) the number of protons or electrons in a neutral atom
B) the number of neutrons in a nucleus
C) the number of different isotopes of an element
D) the total number of neutrons and protons in a nucleus
E) the number of atoms in 1 g of an element
80) 200 pm is the same as __________ Å.
A) 2
B) 2000
C) 2 × 10-12
D) 20
E) 200
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
..
81) What group in the periodic table would the fictitious element : X :be found?
.
82) What is the name of an alcohol derived from hexane__________ ?
83) Carbon can exist in different forms called __________.
84) Which element in Group IA is the most metallic?
85) Which element in the halogen family would require the greatest ionization energy ?
86) The formula for potassium sulfide is __________.
10
17
X
8
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