Chemistry, 10e (Brown)
Chapter 2, Atoms, Molecules, and IonsAnswers AttachedMultiple-Choice and Bimodal1) 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) 25.6
B) 6.8
C) 13.6
D) 136
E) 27.2
Answer: See Attachment
Diff: 3 Page Ref: Sec. 2.1
2) Methane and ethane are both made up of carbon and hydrogen. In methane, there are 12.0 g of carbon for every 4.00 g of hydrogen, a ratio of 3:1 by mass. In ethane, there are 24.0 g of carbon for every 6.00 g of hydrogen, a ratio of 4:1 by mass. This is a statement of the law of __________.
A) constant composition
B) multiple proportions
C) conservation of matter
D) conservation of mass
E) octaves
Answer: See Attachment
Diff: 2 Page Ref: Sec. 2.1
3) Which statement below correctly describes the responses of alpha, beta, and gamma radiation to an electric field?
A) Both beta and gamma are deflected in the same direction, while alpha shows no response.
B) Both alpha and gamma are deflected in the same direction, while beta shows no response.
C) Both alpha and beta are deflected in the same direction, while gamma shows no response.
D) Alpha and beta are deflected in opposite directions, while gamma shows no response.
E) Only alpha is deflected, while beta and gamma show no response.
Answer: See Attachment
Diff: 2 Page Ref: Sec. 2.2
4) __________ and __________ reside in the atomic nucleus.
A) Protons, electrons
B) Electrons, neutrons
C) Protons, neutrons
D) none of the above
E) Neutrons, only neutrons
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.2
5) 200 pm is the same as __________ .
A) 2000
B) 20
C) 200
D) 2
E)
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.3
6) The atomic number indicates __________.
A) the number of neutrons in a nucleus
B) the total number of neutrons and protons in a nucleus
C) the number of protons or electrons in a neutral atom
D) the number of atoms in 1 g of an element
E) the number of different isotopes of an element
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.3
7) Which pair of atoms constitutes a pair of isotopes of the same element?
A) X X
B) X X
C) X X
D) X X
E) X X
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.3
8) The nucleus of an atom contains __________.
A) electrons
B) protons, neutrons, and electrons
C) protons and neutrons
D) protons and electrons
E) protons
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.3
9) In the periodic table, the rows are called __________ and the columns are called __________.
A) octaves, groups
B) staffs, families
C) periods, groups
D) cogeners, families
E) rows, groups
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
10) Which group in the periodic table contains only nonmetals?
A) 1A
B) 6A
C) 2B
D) 2A
E) 8A
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
11) The element __________ is the most similar to strontium in chemical and physical properties.
A) Li
B) At
C) Rb
D) Ba
E) Cs
Answer: See Attachment
Diff: 3 Page Ref: Sec. 2.5
12) Horizontal rows of the periodic table are known as __________.
A) periods
B) groups
C) metalloids
D) metals
E) nonmetals
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
13) Vertical columns of the periodic table are known as __________.
A) metals
B) periods
C) nonmetals
D) groups
E) metalloids
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
14) Elements in Group 1A are known as the __________.
A) chalcogens
B) alkaline earth metals
C) alkali metals
D) halogens
E) noble gases
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
15) Elements in Group 2A are known as the __________.
A) alkaline earth metals
B) alkali metals
C) chalcogens
D) halogens
E) noble gases
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
16) Elements in Group 6A are known as the __________.
A) alkali metals
B) chalcogens
C) alkaline earth metals
D) halogens
E) noble gases
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
17) Elements in Group 7A are known as the __________.
A) chalcogens
B) alkali metals
C) alkaline earth metals
D) halogens
E) noble gases
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
18) Elements in Group 8A are known as the __________.
A) halogens
B) alkali metals
C) alkaline earth metals
D) chalcogens
E) noble gases
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
19) Potassium is a __________ and chlorine is a __________.
A) metal, nonmetal
B) metal, metal
C) metal, metalloid
D) metalloid, nonmetal
E) nonmetal, metal
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
20) Lithium is a __________ and magnesium is a __________.
A) nonmetal, metal
B) nonmetal, nonmetal
C) metal, metal
D) metal, metalloid
E) metalloid, metalloid
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
21) Oxygen is a __________ and nitrogen is a __________.
A) metal, metalloid
B) nonmetal, metal
C) metalloid, metalloid
D) nonmetal, nonmetal
E) nonmetal, metalloid
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
22) Calcium is a __________ and silver is a __________.
A) nonmetal, metal
B) metal, metal
C) metalloid, metal
D) metal, metalloid
E) nonmetal, metalloid
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.5
23) __________ are found uncombined, as monatomic species in nature.
A) Noble gases
B) Chalcogens
C) Alkali metals
D) Alkaline earth metals
E) Halogens
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.6
24) When a metal and a nonmetal react, the __________ tends to lose electrons and the __________ tends to gain electrons.
A) metal, metal
B) nonmetal, nonmetal
C) metal, nonmetal
D) nonmetal, metal
E) None of the above, these elements share electrons.
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.6
25) The empirical formula of a compound with molecules containing 12 carbon atoms, 14 hydrogen atoms, and 6 oxygen atoms is __________.
A)
B) CHO
C)
D)
E)
Answer: See Attachment
Diff: 2 Page Ref: Sec. 2.6
26) __________ typically form ions with a 2+ charge.
A) Alkaline earth metals
B) Halogens
C) Chalcogens
D) Alkali metals
E) Transition metals
Answer: See Attachment
Diff: 2 Page Ref: Sec. 2.7
27) What is the formula of the compound formed between strontium ions and nitrogen ions?
A) SrN
B)
C)
D)
E)
Answer: See Attachment
Diff: 3 Page Ref: Sec. 2.7
28) 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)
B)
C)
D)
E) KX
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
29) The formula of a salt is . The X-ion in this salt has 28 electrons. The metal X is __________.
A) Ni
B) Zn
C) Fe
D) V
E) Pd
Answer: See Attachment
Diff: 2 Page Ref: Sec. 2.7
30) The charge on the manganese in the salt is __________.
A) +1
B) -1
C) +2
D) -2
E) +3
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
31) Aluminum reacts with a certain nonmetallic element to form a compound with the general formula AlX. Element X is a diatomic gas at room temperature. Element X must be __________.
A) oxygen
B) fluorine
C) chlorine
D) nitrogen
E) sulfur
Answer: See Attachment
Diff: 2 Page Ref: Sec. 2.7
32) Sodium forms an ion with a charge of __________.
A) +1
B) -1
C) +2
D) -2
E) 0
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
33) Potassium forms an ion with a charge of __________.
A) +2
B) -1
C) +1
D) -2
E) 0
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
34) Calcium forms an ion with a charge of __________.
A) -1
B) -2
C) +1
D) +2
E) 0
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
35) Barium forms an ion with a charge of __________.
A) +1
B) -2
C) +3
D) -3
E) +2
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
36) Aluminum forms an ion with a charge of __________.
A) +2
B) -3
C) +1
D) +3
E) -1
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
37) Fluorine forms an ion with a charge of __________.
A) -1
B) +1
C) +2
D) +3
E) -3
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
38) Iodine forms an ion with a charge of __________.
A) -7
B) +1
C) -2
D) +2
E) -1
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
39) Oxygen forms an ion with a charge of __________.
A) -2
B) +2
C) -3
D) +3
E) +6
Answer: See Attachment
Diff: 1 Page Ref: Sec. 2.7
40) Sulfur forms an ion with a charge of __________.
A) +2
B) -2
C) +3
D) -6
E) +6
Answer: See Attachment
Diff: 2 Page Ref: Sec. 2.7
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