TEST BANK FOR ZUMDAHL CHEMISTRY 9TH EDITION (Complete Test Bank with Questions and Answers)

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,Chapter 1: Chemical Foundations
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1. Which of the following is an example of a quantitative observation?
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A) The piece of metal is longer than the piece of wood.
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B) Solution 1 is much darker than solution 2. ss ss ss ss ss ss ss




C) The liquid in beaker A is blue.
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D) The temperature of the liquid is 60°C.
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E) At least two of the above (A-D) are quantitative observations.
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ANS: D DIF: Easy REF: 1.2

KEY: Chemistry | general chemistry | general concepts | ss ss ss ss ss ss ss




ss scientific methodbbMSC: ss s s Conceptual


2. A quantitative observation
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A) contains a number and a unit ss ss ss ss ss




B) does not contain a number ss ss ss ss




C) always makes a comparison ss ss ss




D) must be obtained through experimentation
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E) is none of these
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ANS: A DIF: Easy REF: 1.2

KEY: Chemistry | general chemistry | general concepts | ss ss ss ss ss ss ss




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3. Generally, observed behavior that can be formulated into a
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ss statement, sometimesbbmathematical in nature, is called a(n)
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, A) observation

B) measurement

C) theory

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E) experiment


ANS: D DIF: Easy REF: 1.2

KEY: Chemistry | general chemistry | general concepts |
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ss scientific methodbbMSC:
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4. The statement ―The total mass of materials is not affected by a chemical change
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ss in thosebbmaterials‖ is called a(n)
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A) observation

B) measurement

C) theory

D) natural law ss




E) experiment


ANS: D DIF: Easy REF: 1.2

KEY: Chemistry | general chemistry | general concepts |
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ss scientific methodbbMSC:
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5. A chemical theory that has been known for a long time becomes a law.
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