Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN: 9780534420123
Author: Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher: Cengage Learning
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Chapter 1, Problem 1.39QE

(a)

Interpretation Introduction

Interpretation:

Helium has to be classified as an element, a compound or a mixture.  The mixture has to be identified as homogeneous or heterogeneous.

Concept Introduction:

Element:

When a substance cannot be broken down into simpler substances by chemical means, it is said to be an element.

Compound:

When a substance can be broken down into simpler substances by chemical means, it is said to be a compound.

Mixture:

The combination of two or more substances which can be separated by the differences in the physical properties of the substances is said to be a mixture.

Homogeneous mixture:

If the composition of mixture is uniform throughout, then it is said to be homogeneous mixture.

Heterogeneous mixture:

If the composition of mixture is changed from one part to another, then it is said to be heterogeneous mixture.

(b)

Interpretation Introduction

Interpretation:

A muddy river has to be classified as an element, a compound or a mixture.  The mixture has to be identified as homogeneous or heterogeneous.

Concept Introduction:

Refer to part-a.

(c)

Interpretation Introduction

Interpretation:

Window glass has to be classified as an element, a compound or a mixture.  The mixture has to be identified as homogeneous or heterogeneous.

Concept Introduction:

Refer to part-a.

(d)

Interpretation Introduction

Interpretation:

Paint has to be classified as an element, a compound or a mixture.  The mixture has to be identified as homogeneous or heterogeneous.

Concept Introduction:

Refer to part-a.

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Chapter 1 Solutions

Chemistry: Principles and Practice

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