TEST BANK FOR Chemistry 10th Edition by Steven Zumdahl, Susan Zumdahl, Donald J. DeCoste ISBN:978-1305957404 COMPLETE GUIDE ALL CHAPTERS COVERED 100% VERIFIED A+ GRADE ASSURED!!!! NEW LATEST UPDATE!!!!!

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Chapter 01 - Chemistry: An Introduction
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1. Define the following terms:
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a. science
b. chemistry
ANSWER: a. Science - i@ i@


a framework for gaining and organizing knowledge. It is a procedure for processing and understan
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din g certain information. i@ i@ i@


b. Chemistry - the science that deals with the matter of the universe and the changes it can undergo.
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2. Define the following terms:
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a. scientific method i@


b. natural law i@


c. hypothesis
d. theory
ANSWER: a. Scientific method - the process or steps of scientific inquiry.
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b. Natural law - a statement describing observed behavior.i@ i@ i@ i@ i@ i@ n&



c. Hypothesis - a possible explanation for an observation. i@ i@ i@ i@ i@ i@ i@


d. Theory - i@


a set of testsed hypotheses that gives an explanation for some behavior or observation (also called a
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m odel). i@




3. Which of the following is not a step in the scientific method?
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a. Make an observation. i@ i@



b. Formulate a hypothesis. i@ i@



c. Perform an experiment. i@ i@



d. Change results to agree with your hypothesis.
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e. Develop a theory (or model). i@ i@ i@ i@


ANSWER: d

4. A is a summary of observed behavior, and a
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a. law, measurement i@


b. theory, scientific method i@ i@


c. theory, law i@



d. law, theory i@



e. hypothesis, theory i@



ANSWER: d

5. Generally, observed behavior that can be formulated into a statement, sometimes mathematical in nature,
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is c a lled a(n)
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a. observation
b. measurement
c. theory
d. natural law i@



e. experiment
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,Name Clas Dat
: s: e:

Chapter 01 - Chemistry: An Introduction
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ANSWER: d




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, Name Clas Dat
: s: e:

Chapter 01 - Chemistry: An Introduction
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6. The statement “The total mass of materials is not affected by a chemical change in those materials” is called
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@ a(n
)
a. observation
b. measurement
c. theory
d. natural law i@



e. experiment
ANSWER: d

7. A set of tested hypotheses than gives an overall explanation of some part of nature, is called a(n)
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a. observation
b. measurement
c. theory
d. natural law i@


e. experiment
ANSWER: c

8. Something done to test a hypothesis that produces new observations is called a(n)
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a. observation
b. measurement
c. theory
d. natural law i@



e. experiment
ANSWER: e

9. A quantitative observation
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a. contains a number and a unit i@ o i@ i@ i@ i@



b. does not contain a number i@ o i@ i@ i@



c. always makes a comparison i@ i@ o i@




d. must be obtained through experimentation
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e. is none of these
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ANSWER: a

10. 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.
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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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