Introductory Chemistry: A Foundation
9th Edition
ISBN: 9781337671323
Author: ZUMDAHL
Publisher: Cengage
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Chapter 1, Problem 5QAP
This textbook provides a specific definition of chemistry: the study of the materials of which the universe is made and the transformations that these materials undergo. Obviously, such a general definition has to be very broad and nonspecific. From your point of view al this lime, how wouldyoudefine chemistry? In your mind, what are “chemicals”? What do “chemists” do?
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There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three
different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must
also decide whether it is a physical change or a chemical change.
Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should
assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave.
Change 1
Change 1 is:
00
impossible
a physical change
a chemical change
Sample of Substance X
000
Change 2
Change 2 is:
impossible
a physical change
a chemical change
Change 3
Change 3 is:
00
impossible
a physical change
a chemical change
There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample.
You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change.
Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the
entire sample, and that the sample is in a sealed box, so that no matter can enter or leave.
Sample of Substance X
Change 1
Change 1 is
O impossible
O
O a chemical change
a physical change
Change 2
Change 2 is:
impossible
O a physical change
O a chemical change
Change 3
000 000
Change 3 is:
O impossible
O a physical change
O a chemical change
X
There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change.
Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave.
Chapter 1 Solutions
Introductory Chemistry: A Foundation
Ch. 1.4 - What if everyone in the government used the...Ch. 1 - Discuss how a hypothesis can become a theory. Can...Ch. 1 - Make five qualitative and five quantitative...Ch. 1 - Prob. 3ALQCh. 1 - Differentiate between a “theory” and a “scientific...Ch. 1 - Describe three situations when you used the...Ch. 1 - Scientific models do not describe reality. They...Ch. 1 - Theories should inspire questions. Discuss a...Ch. 1 - Describe how you would set up an experiment to...Ch. 1 - If all scientists use the scientific method to try...
Ch. 1 - As stated in the text, there is no one scientific...Ch. 1 - In Section 1.3 the statement is made that it is...Ch. 1 - As part of a science project, you study traffic...Ch. 1 - Prob. 13ALQCh. 1 - Chemistry is an intimidating academic subject for...Ch. 1 - The first paragraphs in this chapter ask you if...Ch. 1 - This section presents several ways our day-to-day...Ch. 1 - The Chemistry in Focus segment titled Dr....Ch. 1 - This textbook provides a specific definition of...Ch. 1 - We use chemical reactions in our everyday lives,...Ch. 1 - Prob. 7QAPCh. 1 - Being a scientist is very much like being a...Ch. 1 - In science, what is the difference between a law...Ch. 1 - Observations may be either qualitative or...Ch. 1 - Prob. 11QAPCh. 1 - True or false? If a theory is disproven, then all...Ch. 1 - Although, in general, science has advanced our...Ch. 1 - Discuss several political, social, or personal...Ch. 1 - Although reviewing your lecture notes and reading...Ch. 1 - Why is the ability to solve problems important in...Ch. 1 - Students approaching the study of chemistry must...Ch. 1 - The ‘Chemistry in Focus” segmentChemistry: An...
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- Why is the ability to solve problems important in the study of chemistry? Why is it that the method used to attack a problem is as important as the answer Lo the problem itself?arrow_forwardThere are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change. Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave. Sample of Substance X Change 1 Change 2 Change 3 Change 1 is: Change 2 is: Change 3 is: O impossible O a physical change O a chemical change O impossible O a physical change O a chemical change O impossible O a physical change O a chemical changearrow_forwardwhat is organic,inorganic, and physical chemistry? give 10 differences with your own wordsarrow_forward
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