Chapter 2.3, Problem 1RQ

Interpretation Introduction

Interpretation: The term mixture and its two examples need to be explained.

Concept Introduction: Practically all of the matter in environment consists of mixtures of different substance. For example, soil; it has many forms of components, air; it has mixture of many gases, etc.

Answer to Problem 1RQ

Something that has variable composition is known as mixture. For example, Soda is a mixture, wood is a mixture.

Explanation of Solution

The majority of substances that a person sees in his/ her surrounding neighborhoods are not pure substances; they are mixtures. The mixture is a combination of two or more than two different materials in such a technique that zero chemical reaction occurs. In mixture, substance can be separated by the physical methods such as freezing, filtration and distillation. For example,

• Sea water
• Crude oil
• Soda
• Wood