Chapter 15, Problem 7A

Interpretation Introduction

Interpretation:

The given blank is to be filled.

Concept introduction:

A solution is formed when solute is dissolved in solvent.

Solution is generally of two types:

Concentrated solution

Dilute solution

Answer to Problem 7A

variable

Explanation of Solution

Both solution and compound are homogeneous but a compound has fixed composition of its constituents but mixture can have variable composition of its constituents.

For example:

A sugar solution can be formed by dissolving 1 spoon of sugar in one glass water or by dissolving 2 spoons as well.

But a compound for example water can be formed if hydrogen and oxygen are combined in molar ratio 2:1

Conclusion

Thus, a mixture has variable composition of its constituents.