Introductory Chemistry 8th Edition by Steven S. Zumdahl - ISBN 978-1285453132 COMPLETE GUIDE WITH RATIONALES 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 - ui ui




a framework for gaining and organizing knowledge. It is a procedure for processing and understanding c
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ertain information. ui




b. Chemistry - the science that deals with the matter of the universe and the changes it can undergo. ui ui ui ui ui ui ui ui ui ui ui ui ui ui ui ui ui




2. Define the following terms:
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a. scientific method ui




b. natural law ui




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. ui ui ui ui ui ui ui




c. Hypothesis - a possible explanation for an observation. ui ui ui ui ui ui ui




d. Theory - ui




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

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




b. Formulate a hypothesis. ui ui




c. Perform an experiment. ui ui




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




ANSWER: d

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




b. theory, scientific method ui ui




c. theory, law ui




d. law, theory ui




e. hypothesis, theory ui




ANSWER: d

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




e. experiment
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,Name Clas Dat ui


: s: e:

Chapter 01 - Chemistry: An Introduction
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ANSWER: d




Copyright Cengage Learning. Powered by Cognero.
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, Name Clas Dat ui


: 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 a(n)
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a. observation
b. measurement
c. theory
d. natural law ui




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 ui




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 ui




e. experiment
ANSWER: e

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




b. does not contain a number ui ui ui ui




c. always makes a comparison ui ui ui




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. ui ui ui ui ui ui ui




c. The liquid in beaker A is blue. ui ui ui ui ui ui




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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