Chemistry, 11e Brown

1 Chemistry, 11e (Brown) Chapter 1: Introduction: Matter and Measurement Multiple Choice and Bimodal

1) Solids have a shape and are not appreciably .

• definite, compressible
• definite, incompressible
• indefinite, compressible
• indefinite, incompressible
• sharp, convertible

Answer: A

Diff: 1 Page Ref: Sec. 1.2

2) is the chemical symbol for elemental sodium.

• S
• W
• So
• Na
• 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 decomposed into other substances by chemical processes, it is called a (an) .

• heterogeneous mixture
• element
• homogeneous mixture
• compound
• mixture of elements

Answer: D

Diff: 4 Page Ref: Sec. 1.2

4) The symbol for the element potassium is .

• Pt
• P
• K
• S
• Ca

Answer: C

Diff: 1 Page Ref:Sec. 1.2

5) The symbol for the element magnesium is .

• Rb
• Mn
• Ne
• Si
• Mg

Answer: E

Diff: 1 Page Ref:Sec. 1.2

6) The initial or tentative explanation of an observation is called a(n) .

• law
• theory
• hypothesis
• experiment
• test

Answer: C

Diff: 2 Page Ref:Sec. 1.3 1 / 4

2 7) A concise verbal statement or mathematical equation that summarizes a broad variety of observations and experiences is called a(n) .

• law
• theory
• hypothesis
• experiment
• 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 .

• filtration
• solvation
• distillation
• chromatography
• all of the above are correct

Answer: C

Diff: 3 Page Ref:Sec. 1.3

9) The SI unit for mass is .

• kilogram
• gram
• pound
• troy ounce
• 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

• Kelvin
• Celsius
• Fahrenheit
• Kelvin and Celsius
• Fahrenheit and Celsius

Answer: C

Diff: 3 Page Ref:Sec. 1.4

temperature scale.

11) A common English set of units for expressing velocity is miles/hour. The SI unit for velocity is ?

• km/hr
• km/s
• m/hr
• m/s
• cm/s

Answer: D

Diff: 3 Page Ref:Sec. 1.4 2 / 4

3 12) The unit of force in the English measurement system is 1b • ft . The SI unit of force is the Newton, which is s 2 in base SI units.A) g • cm s 2 B) kg • m hr 2

C) kg • m s 2 D) g • m s 2 E) g • cm 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

s

• kg • m

hr

• g • m

s

• g • km

s

• kg • km

hr

Answer: A

Diff: 4 Page Ref:Sec. 1.4

14) The SI unit of temperature is .

• K

B) °C

C) °F

• t
• 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 / 4

4 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

• 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.

• 17

B) 276

C) 290

• 29

E) 336

Answer: C

Diff: 2 Page Ref:Sec. 1.4

19) 1 nanometer =

A) 1000

B) 0.1

C) 0.01

• 1
• 10

Answer: A

Diff: 2 Page Ref:Sec. 1.4

picometers

20) 1 picometer = centimeters

A) 1 × 10

10

B) 1 × 10

−10

C) 1 × 10

8

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

• none of the above

Answer: D

Diff: 2 Page Ref:Sec. 1.4

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