Chemistry The Central Science 10th Edition By brown - Test Bank

,Exam

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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

1) Which one of the following elements has a symbol that is not derived from its foreign name? 1)
A) aluminum B) tin C) lead D) copper E) mercury
Answer: A
Explanation: A)
B)
C)
D)
E)

2) Which states of matter are significantly compressible? 2)
A) solids and liquids
B) liquids only
C) solids only
D) gases only
E) liquids and gases
Answer: D
Explanation: A)
B)
C)
D)
E)

3) Gases and liquids share the property of __________. 3)
A) definite shape
B) compressibility
C) indefinite shape
D) incompressibility
E) definite volume
Answer: C
Explanation: A)
B)
C)
D)
E)




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,4) Which of the following liquids has the greatest density? 4)
A) 13 cm3 with a mass of 23 g
B) 210 cm3 with a mass of 12 g
C) 3.5 cm3 with a mass of 10 g
D) 54 cm3 with a mass of 45 g
E) 0.022 cm3 with a mass of 0.10 g
Answer: E
Explanation: A)
B)
C)
D)
E)

5) Express the temperature, 422.35 K, in degrees Celsius. 5)
A) 149.20°C B) 792.23°C C) 50.89°C D) 695.50°C E) 22.78°C
Answer: A
Explanation: A)
B)
C)
D)
E)

6) What is the physical state in which matter has no specific shape but does have a specific volume? 6)
A) solid B) salts C) gas D) liquid E) ice
Answer: D
Explanation: A)
B)
C)
D)
E)

7) Which of the following is the same as 0.001 cm? 7)
A) 100 mm B) 1 mm C) 0.01 m D) 0.01 dm E) 0.01 mm
Answer: E
Explanation: A)
B)
C)
D)
E)

8) If an object is accelerating at a rate of 25 m/s2 , how long (in seconds) will it take to reach a speed of 8)
550 m/s? (Assume an initial velocity of zero.)
A) 22 B) 1.4 × 104 C) 2.3 × 102 D) 0.045 E) 1.2 × 104
Answer: A
Explanation: A)
B)
C)
D)
E)



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, 9) Which of the following are chemical processes? 9)
1. rusting of a nail
2. freezing of water
3. decomposition of water into hydrogen and oxygen gases
4. compression of oxygen gas
A) 1, 3, 4 B) 1, 4 C) 2, 3, 4 D) 1, 2 E) 1, 3
Answer: E
Explanation: A)
B)
C)
D)
E)

10) If an object is accelerating at a rate of 25 m/s2 , how fast will it be moving (in m/s) after 1.50 min? 10)
(Assume an initial velocity of zero.)
A) 3.6 B) 38 C) 2.3 × 103 D) 17 E) 0.060
Answer: C
Explanation: A)
B)
C)
D)
E)

11) Of the objects below, __________ is the most dense. 11)
A) an object with a volume of 2.5 L and a mass of 12.5 kg
B) an object with a volume of 13 dm3 and a mass of 1.29 × 103 g
C) an object with a volume of 0.00212 m 3 and a mass of 4.22 × 104 mg
D) an object with a volume of 3.91 × 10-24 nm3 and a mass of 7.93 × 10-1 ng
E) an object with a volume of 139 mL and a mass of 93 g
Answer: D
Explanation: A)
B)
C)
D)
E)

12) Which one of the following is a pure substance? 12)
A) wood
B) concrete
C) salt water
D) milk
E) elemental copper
Answer: E
Explanation: A)
B)
C)
D)
E)




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