Exam (elaborations) TEST BANK RANDOM PEOPLE - CHEMISTRY THE CENTRAL SCIENCE 11TH EDITION BROWN
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Chemistry
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Chemistry, 11e (Brown)
Chapter 1: Introduction: Matter and Measurement
Multiple Choice and Bimodal
1) Solids have a __________ shape and are not appreciably __________.
A) definite, compressible
B) definite, incompressible
C) indefinite, compressible
D) indefinite, incompressible
E) sharp, convertible
Answer: A
Diff: 1 Page Ref: Sec. 1.2
2) __________ is the chemical symbol for elemental sodium.
A) S
B) W
C) So
D) Na
E) Sn
Answer: D
Diff: 1 Page Ref: Sec. 1.2
3) If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be
Guru
decomposed into other substances by chemical processes, it is called a (an) __________.
A) heterogeneous mixture
B) element
C) homogeneous mixture
D) compound
E) mixture of elements
Answer: D
Diff: 4 Page Ref: Sec. 1.2
4) The symbol for the element potassium is __________.
A) Pt
B) P
C) K
D) S
E) Ca
Answer: C
Diff: 1 Page Ref:Sec. 1.2
5) The symbol for the element magnesium is __________.
A) Rb
B) Mn
C) Ne
D) Si
E) Mg
Answer: E
Diff: 1 Page Ref:Sec. 1.2
6) The initial or tentative explanation of an observation is called a(n) __________.
A) law
B) theory
C) hypothesis
D) experiment
E) test
Answer: C
Diff: 2 Page Ref:Sec. 1.3
1
,7) A concise verbal statement or mathematical equation that summarizes a broad variety of observations and
experiences is called a(n) __________.
A) law
B) theory
C) hypothesis
D) experiment
E) test
Answer: A
Diff: 2 Page Ref:Sec. 1.3
8) A separation process that depends on differing abilities of substances to form gases is called __________.
A) filtration
B) solvation
C) distillation
D) chromatography
E) all of the above are correct
Answer: C
Diff: 3 Page Ref:Sec. 1.3
9) The SI unit for mass is __________.
A) kilogram
Guru
B) gram
C) pound
D) troy ounce
E) none of the above
Answer: A
Diff: 1 Page Ref:Sec. 1.4
10) A one degree of temperature difference is the smallest on the __________ temperature scale.
A) Kelvin
B) Celsius
C) Fahrenheit
D) Kelvin and Celsius
E) Fahrenheit and Celsius
Answer: C
Diff: 3 Page Ref:Sec. 1.4
11) A common English set of units for expressing velocity is miles/hour. The SI unit for velocity is __________?
A) km/hr
B) km/s
C) m/hr
D) m/s
E) cm/s
Answer: D
Diff: 3 Page Ref:Sec. 1.4
2
, 1b • ft
12) The unit of force in the English measurement system is . The SI unit of force is the Newton, which is
s2
__________ in base SI units.
g • cm
A)
s2
kg • m
B)
hr 2
kg • m
C)
s2
g•m
D)
s2
g • cm
E)
s
Answer: C
Diff: 4 Page Ref:Sec. 1.4
13) Momentum is defined as the product of mass and velocity. The SI unit for momentum is __________?
kg • m
Guru
A)
s
kg • m
B)
hr
g•m
C)
s
g • km
D)
s
kg • km
E)
hr
Answer: A
Diff: 4 Page Ref:Sec. 1.4
14) The SI unit of temperature is __________.
A) K
B) °C
C) °F
D) t
E) T
Answer: A
Diff: 2 Page Ref:Sec. 1.4
15) The temperature of 25°C is __________ in Kelvins.
A) 103
B) 138
C) 166
D) 248
E) 298
Answer: E
Diff: 1 Page Ref:Sec. 1.4
3
, 16) The freezing point of water at 1 atm pressure is __________.
A) 0°F
B) 0 K
C) 0°C
D) -273°C
E) -32°F
Answer: C
Diff: 2 Page Ref:Sec. 1.4
17) A temperature of 400 K is the same as __________°F.
A) 261
B) 286
C) 88
D) 103
E) 127
Answer: A
Diff: 2 Page Ref:Sec. 1.4
18) A temperature of __________ K is the same as 63°F.
A) 17
B) 276
Guru
C) 290
D) 29
E) 336
Answer: C
Diff: 2 Page Ref:Sec. 1.4
19) 1 nanometer = __________ picometers
A) 1000
B) 0.1
C) 0.01
D) 1
E) 10
Answer: A
Diff: 2 Page Ref:Sec. 1.4
20) 1 picometer = __________ centimeters
A) 1 × 1010
B) 1 × 10−10
C) 1 × 108
D) 1 × 10−8
E) 1 × 10−12
Answer: B
Diff: 2 Page Ref:Sec. 1.4
21) 1 kilogram = __________ milligrams
A) 1 × 10−6
B) 1,000
C) 10,000
D) 1,000,000
E) none of the above
Answer: D
Diff: 2 Page Ref:Sec. 1.4
4
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