Whether the dew condensing on a leaf can be reversed by changing the temperature or not is to be determined. Concept introduction: The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change. Ice ( water ) → liquid ( water ) The physical change can be represented as follows: The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change. Paper ( cellulose ) → ash ( carbon ) The representation of chemical change is as follows:

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Answer 1

Question

Chapter 1, Problem 1.7P

(a)

Interpretation Introduction

Interpretation:

Whether the dew condensing on a leaf can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(b)

Interpretation Introduction

Interpretation:

Whether an egg turning hard due to boiling can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(c)

Interpretation Introduction

Interpretation:

Whether the melting of ice cream can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(d)

Interpretation Introduction

Interpretation:

Whether a spoonful of the batter cooking on a hot griddle can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

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Part I. Problem solving. Include all necessary calculations 13 provide plots and graphs. Complexation wl diphenyl carbazide (OPC) in acidic media is another type of sensitive photometric method used for the analysis of aqueous. hexavalent chromium. At 540nm the cherry-red complex as a result of DPC reaction w/ chromium can be photometrically measured. at this wavelength. - a 25mL The UV-vis analysis for the determination of nexavalent chromium in ground water sample is given below. The experiment was based on external calibration method w/ each measurement sample prepared are as follows lab sample analysis contained the standard 100 ppb croy cor groundwater sample, volumes used as indicated below), 12.50 mL of 0.02 M H2Soy and 5.50 ml of 100 ppm DPC (wi water to adjust final volume to 25-ml). The main stripping method was square wave voltammetry, following the conditions set in the main ASV experiment. Standard 100 Volumetric Groundwater H2SO4 0.20 M, flask Sample, mL ppb CrO4*, 100…

Answer 2

Question

Chapter 1, Problem 1.7P

(a)

Interpretation Introduction

Interpretation:

Whether the dew condensing on a leaf can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(b)

Interpretation Introduction

Interpretation:

Whether an egg turning hard due to boiling can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(c)

Interpretation Introduction

Interpretation:

Whether the melting of ice cream can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(d)

Interpretation Introduction

Interpretation:

Whether a spoonful of the batter cooking on a hot griddle can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

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Answer 3

Question

Chapter 1, Problem 1.7P

(a)

Interpretation Introduction

Interpretation:

Whether the dew condensing on a leaf can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(b)

Interpretation Introduction

Interpretation:

Whether an egg turning hard due to boiling can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(c)

Interpretation Introduction

Interpretation:

Whether the melting of ice cream can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(d)

Interpretation Introduction

Interpretation:

Whether a spoonful of the batter cooking on a hot griddle can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Expert Solution & Answer

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Answer 4

Question

Chapter 1, Problem 1.7P

(a)

Interpretation Introduction

Interpretation:

Whether the dew condensing on a leaf can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(b)

Interpretation Introduction

Interpretation:

Whether an egg turning hard due to boiling can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(c)

Interpretation Introduction

Interpretation:

Whether the melting of ice cream can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(d)

Interpretation Introduction

Interpretation:

Whether a spoonful of the batter cooking on a hot griddle can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Expert Solution & Answer

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Answer 5

Chapter 1, Problem 1.7P

(a)

Interpretation Introduction

Interpretation:

Whether the dew condensing on a leaf can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(b)

Interpretation Introduction

Interpretation:

Whether an egg turning hard due to boiling can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(c)

Interpretation Introduction

Interpretation:

Whether the melting of ice cream can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

(d)

Interpretation Introduction

Interpretation:

Whether a spoonful of the batter cooking on a hot griddle can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Answer 6

Chapter 1, Problem 1.7P

(a)

Interpretation Introduction

Interpretation:

Whether the dew condensing on a leaf can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Answer 7

Chapter 1, Problem 1.7P

(a)

Interpretation Introduction

Interpretation:

Whether the dew condensing on a leaf can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Answer 8

(b)

Interpretation Introduction

Interpretation:

Whether an egg turning hard due to boiling can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Answer 9

(b)

Interpretation Introduction

Interpretation:

Whether an egg turning hard due to boiling can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Answer 10

(c)

Interpretation Introduction

Interpretation:

Whether the melting of ice cream can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Answer 11

(c)

Interpretation Introduction

Interpretation:

Whether the melting of ice cream can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Answer 12

(d)

Interpretation Introduction

Interpretation:

Whether a spoonful of the batter cooking on a hot griddle can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Answer 13

(d)

Interpretation Introduction

Interpretation:

Whether a spoonful of the batter cooking on a hot griddle can be reversed by changing the temperature or not is to be determined.

Concept introduction:

The change that takes place only in state or appearance and not in the composition is known as physical change. The atoms or the molecules of a substance do not change their identity when a substance undergoes a physical change. The substance remains the same before and after the change. Physical change brings change in physical properties only. For example, the melting of ice is a physical change.

Ice(water)→liquid(water)

The physical change can be represented as follows:

The change that takes place in the composition is known as chemical change. The atoms or the molecules of the substance rearrange and transformed into a new substance. A chemical change can change physical as well as chemical properties of a substance. For example, the burning of paper is a chemical change.

Paper(cellulose)→ash(carbon)

The representation of chemical change is as follows:

Answer 14

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Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

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