Scenes A-D represent atomic-scale views of different samples of substances: Under one set of conditions, the substances in A and B mix, and the result is depicted in C. Does this represent a chemical or a physical change? Under a second set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change? Under a third set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change? After the change in part(c) has occurred, does the sample have different chemical properties? Physical properties?

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Answer 1

Textbook Question

Chapter 1, Problem 1.1P

Scenes A-D represent atomic-scale views of different samples of substances:

Chapter 1, Problem 1.1P, Scenes A-D represent atomic-scale views of different samples of substances: Under one set of

Under one set of conditions, the substances in A and B mix, and the result is depicted in C. Does this represent a chemical or a physical change?
Under a second set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change?
Under a third set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change?
After the change in part(c) has occurred, does the sample have different chemical properties? Physical properties?

a)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form C is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in C. So when A and B are mixed to form C, it refers to chemical change.

b)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form D is physical or chemical change should be determined.

Concept introduction:Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in D. So when A and B are mixed to form D, a completely different substance is formed. Therefore combination of A and B to form D is chemical change.

c)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, there occurs difference in arrangement of particles only while substances remain same. Therefore it is physical change.

d)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, only arrangement of particles is changed while substances remain same. Therefore it is physical change and physical properties are changed in conversion of C to D.

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Students have asked these similar questions

Scenes A–D represent atomic-scale views of different samples of substances: (a) Under one set of conditions, the substances in A and B mix, and the result is depicted in C. Does this represent a chemical or a physical change? (b) Under a second set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change? (c) Under a third set of conditions, the sample depicted in C changes to that in D. Does this represent a chemical or a physical change? (d) After the change in part (c) has occurred, does the sample have different chemical properties? Physical properties?

In each of the situations below, it seems that a new substance may have been produced. Explain why each situation represents a physical change. (a) A tailor makes a new suit out of a piece of fabric. (b) A chef makes a salad out of lettuce, tomatoes, and cucumbers. (c) A mechanic builds a boat engine out of a lawnmower. (d) A chemist boils salt water until only salt crystals are left. (e) A child makes juice by adding water to juice concentrate.

You strongly heat a tan-colored powdery solid directly on a hot plate in a vacuum chamber (so no air can interfere with the experiment). You get a black powder remaining on the plate, an orange liquid dripping off the plate, and white vapor fumes rising off the plate. Was the substance you started with most likely a pure element, a pure compound, or a mixture? How do you know?

Answer 2

Textbook Question

Chapter 1, Problem 1.1P

Scenes A-D represent atomic-scale views of different samples of substances:

Chapter 1, Problem 1.1P, Scenes A-D represent atomic-scale views of different samples of substances: Under one set of

Under one set of conditions, the substances in A and B mix, and the result is depicted in C. Does this represent a chemical or a physical change?
Under a second set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change?
Under a third set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change?
After the change in part(c) has occurred, does the sample have different chemical properties? Physical properties?

a)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form C is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in C. So when A and B are mixed to form C, it refers to chemical change.

b)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form D is physical or chemical change should be determined.

Concept introduction:Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in D. So when A and B are mixed to form D, a completely different substance is formed. Therefore combination of A and B to form D is chemical change.

c)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, there occurs difference in arrangement of particles only while substances remain same. Therefore it is physical change.

d)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, only arrangement of particles is changed while substances remain same. Therefore it is physical change and physical properties are changed in conversion of C to D.

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Answer 3

Textbook Question

Chapter 1, Problem 1.1P

Scenes A-D represent atomic-scale views of different samples of substances:

Chapter 1, Problem 1.1P, Scenes A-D represent atomic-scale views of different samples of substances: Under one set of

Under one set of conditions, the substances in A and B mix, and the result is depicted in C. Does this represent a chemical or a physical change?
Under a second set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change?
Under a third set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change?
After the change in part(c) has occurred, does the sample have different chemical properties? Physical properties?

a)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form C is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in C. So when A and B are mixed to form C, it refers to chemical change.

b)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form D is physical or chemical change should be determined.

Concept introduction:Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in D. So when A and B are mixed to form D, a completely different substance is formed. Therefore combination of A and B to form D is chemical change.

c)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, there occurs difference in arrangement of particles only while substances remain same. Therefore it is physical change.

d)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, only arrangement of particles is changed while substances remain same. Therefore it is physical change and physical properties are changed in conversion of C to D.

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Answer 4

Textbook Question

Chapter 1, Problem 1.1P

Scenes A-D represent atomic-scale views of different samples of substances:

Chapter 1, Problem 1.1P, Scenes A-D represent atomic-scale views of different samples of substances: Under one set of

Under one set of conditions, the substances in A and B mix, and the result is depicted in C. Does this represent a chemical or a physical change?
Under a second set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change?
Under a third set of conditions, the same substances mix, and the result is depicted in D. Does this represent a chemical or a physical change?
After the change in part(c) has occurred, does the sample have different chemical properties? Physical properties?

a)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form C is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in C. So when A and B are mixed to form C, it refers to chemical change.

b)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form D is physical or chemical change should be determined.

Concept introduction:Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in D. So when A and B are mixed to form D, a completely different substance is formed. Therefore combination of A and B to form D is chemical change.

c)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, there occurs difference in arrangement of particles only while substances remain same. Therefore it is physical change.

d)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, only arrangement of particles is changed while substances remain same. Therefore it is physical change and physical properties are changed in conversion of C to D.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

a)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form C is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in C. So when A and B are mixed to form C, it refers to chemical change.

b)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form D is physical or chemical change should be determined.

Concept introduction:Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in D. So when A and B are mixed to form D, a completely different substance is formed. Therefore combination of A and B to form D is chemical change.

c)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, there occurs difference in arrangement of particles only while substances remain same. Therefore it is physical change.

d)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, only arrangement of particles is changed while substances remain same. Therefore it is physical change and physical properties are changed in conversion of C to D.

Answer 8

a)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form C is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in C. So when A and B are mixed to form C, it refers to chemical change.

Answer 9

a)

Expert Solution

Answer 10

a)

Expert Solution

Answer 11

Expert Solution

Answer 12

Interpretation Introduction

Interpretation: Whether combination of A and B to form C is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Answer 13

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in C. So when A and B are mixed to form C, it refers to chemical change.

Answer 14

b)

Expert Solution

Interpretation Introduction

Interpretation: Whether combination of A and B to form D is physical or chemical change should be determined.

Concept introduction:Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in D. So when A and B are mixed to form D, a completely different substance is formed. Therefore combination of A and B to form D is chemical change.

Answer 15

b)

Expert Solution

Answer 16

b)

Expert Solution

Answer 17

Expert Solution

Answer 18

Interpretation Introduction

Interpretation: Whether combination of A and B to form D is physical or chemical change should be determined.

Concept introduction:Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Answer 19

Explanation of Solution

Substances that are present in A and B have completely different properties than those formed in D. So when A and B are mixed to form D, a completely different substance is formed. Therefore combination of A and B to form D is chemical change.

Answer 20

c)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, there occurs difference in arrangement of particles only while substances remain same. Therefore it is physical change.

Answer 21

c)

Expert Solution

Answer 22

c)

Expert Solution

Answer 23

Expert Solution

Answer 24

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Answer 25

Explanation of Solution

When sample in C is converted to D, there occurs difference in arrangement of particles only while substances remain same. Therefore it is physical change.

Answer 26

d)

Expert Solution

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Explanation of Solution

When sample in C is converted to D, only arrangement of particles is changed while substances remain same. Therefore it is physical change and physical properties are changed in conversion of C to D.

Answer 27

d)

Expert Solution

Answer 28

d)

Expert Solution

Answer 29

Expert Solution

Answer 30

Interpretation Introduction

Interpretation: Whether conversion of C to D is physical or chemical change should be determined.

Concept introduction: Changes can be classified as physical and chemical changes. Physical changes are such changes that allow change of state of matter only but not formation of new substances. Reversal of such changes is possible by physical methods.

Chemical changes allow formation of new and different substances from original substances via chemical reactions. These cannot be reversed back to original state by any method.

Answer 31

Explanation of Solution

When sample in C is converted to D, only arrangement of particles is changed while substances remain same. Therefore it is physical change and physical properties are changed in conversion of C to D.