TEST BANK FOR Introductory Chemistry 8th Edition by Steven Zumdahl , Donald J. DeCoste ISBN:978-1285452821 COMPLETE GUIDE ALL CHAPTERS COVERED 100% VERIFIED A+ GRADE ASURED!!!!! NEW LATEST UPDATE!!!!!

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Chapter 01 - WC WC


Chemistry: An Introduction
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1. Define the following terms:
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a. science
b. chemistry
ANSWER: a. Science - WC WC


a framework for gaining and organizing knowledge. It is a procedure for processing and
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understanding certain information. WC WC


b. Chemistry - WC


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 WC


b. natural law WC


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 - WC


a set of testsed hypotheses that gives an explanation for some behavior or observation (
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also called a model). WC WC WC




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



b. Formulate a hypothesis. WC WC


c. Perform an experiment. WC WC



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 WC is a summary of observed behavior, and a
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a. law, measurement WC



b. theory, scientific method WC WC



c. theory, law WC



d. law, theory WC


e. hypothesis, theory WC



ANSWER: d

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


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,Name Clas Dat
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Chapter 01 -
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WC
e.
WC WC experiment
Chemistry: An Introduction
ANSWER: d




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gnero.

, Name Clas Dat
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: s: e:

Chapter 01 - WC WC


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



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 WC



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 WC



e. experiment
ANSWER: e

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



b. does not contain a number WC WC WC WC



c. always makes a comparison
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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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ANSWER: d

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