EBK FOUNDATIONS OF COLLEGE CHEMISTRY
EBK FOUNDATIONS OF COLLEGE CHEMISTRY
15th Edition
ISBN: 9781118930144
Author: Willard
Publisher: JOHN WILEY+SONS INC.
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Chapter 3, Problem 16PE

(a)

Interpretation Introduction

Interpretation:

Dirt has to be classified as a pure substance or a mixture.

Concept Introduction:

Matter can be classified into two type’s namely pure substance and mixture.

Pure substance:  A single component that has a constant composition, irrespective of the sample size and the sample origin is called as pure substance.  A pure substance could not be broken down to other pure substances by any physical change.

Example:  Water, sugar etc.

Mixture:  A mixture consists of more than one substance and the composition of a mixture is dependent on the sample.  The separation of mixture into its components can be done by physical changes.

(b)

Interpretation Introduction

Interpretation:

Salad dressing has to be classified as a pure substance or a mixture.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

Tungsten has to be classified as a pure substance or a mixture.

Concept Introduction:

Refer to part (a).

(d)

Interpretation Introduction

Interpretation:

Dinitrogen monoxide has to be classified as a pure substance or a mixture.

Concept Introduction:

Refer to part (a).

(e)

Interpretation Introduction

Interpretation:

Brass has to be classified as a pure substance or a mixture.

Concept Introduction:

Refer to part (a).

(f)

Interpretation Introduction

Interpretation:

Egg has to be classified as a pure substance or a mixture.

Concept Introduction:

Refer to part (a).

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