TEST BANK FOR Introductory Chemistry 8th Edition by Steven Zumdahl , Donald J. DeCoste ISBN:978-1285453132 COMPLETE GUIDE ALL CHAPTERS COVERED 100% VERIFIED A+ GRADE ASSURED!!!!!NEW LATEST UPDATE!!!!!

,Name Clas Dat
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Chapter 01 - PM PM


Chemistry: An Introduction
PM PM PM

1. Define the following terms:
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a. science
b. chemistry
ANSWER: a. Science - PM PM


a framework for gaining and organizing knowledge. It is a procedure for processing and un
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derstanding certain information. PM PM


b. Chemistry - PM


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 PM


b. natural law PM


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.
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c. Hypothesis - a possible explanation for an observation.
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d. Theory - PM


a set of testsed hypotheses that gives an explanation for some behavior or observation (al
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so called a model). PM PM PM




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



b. Formulate a hypothesis. PM PM


c. Perform an experiment. PM PM



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

4. A PM is a summary of observed behavior, and a
PM PM PM PM PM PM PM PM is an explanation of behavior.
PM PM PM PM


a. law, measurement PM



b. theory, scientific method PM PM



c. theory, law PM



d. law, theory PM


e. hypothesis, theory PM



ANSWER: d

5. Generally, observed behavior that can be formulated into a statement, sometimes mathematical in na
PM PM PM PM PM PM PM PM PM PM PM PM PM


ture, is called a(n)
PM PM PM


a. observation
b. measurement
c. theory
d. natural law PM


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,Name Clas Dat
PM
: s: e:

Chapter 01 -
PM PM


PM
e.
PM PM experiment
Chemistry: An Introduction
ANSWER: d




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, Name Clas Dat
PM
: s: e:

Chapter 01 - PM PM


Chemistry: An Introduction
PM PM PM

6. The statement “The total mass of materials is not affected by a chemical change in those materials”
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Mis called a(n)
PM PM


a. observation
b. measurement
c. theory
d. natural law PM



e. experiment
ANSWER: d

7. A set of tested hypotheses than gives an overall explanation of some part of nature, is called a(n)
PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM


a. observation
b. measurement
c. theory
d. natural law PM



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 PM



e. experiment
ANSWER: e

9. A quantitative observation
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a. contains a number and a unit PM PM PM PM PM



b. does not contain a number PM PM PM PM



c. always makes a comparison
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d. must be obtained through experimentation
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e. is none of these
PM PM PM



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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ANSWER: d

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