Chapter 14.1, Problem 1SSC

Interpretation Introduction

Interpretation: Characteristics of mixtures have to be explained from the properties of seawater.

Concept Introduction:

Mixture: Mixture is a combination of two or more pure components in which each pure component retains its individual chemical properties. Substances tend to mix naturally. It is difficult to keep any substance in pure form.

Types of Mixtures: Depending upon the nature of the components that form a mixture, we can have different types of mixtures and can be classified as either heterogeneous or homogeneous.

Homogeneous mixture: A homogeneous mixture is a mixture that has a uniform composition throughout; it always has a single phase. The solution is an example of homogeneous mixtures where two components form a single phase. Components cannot be distinguishable in the mixture.

Heterogeneous mixture: A heterogeneous mixture is a mixture with a non-uniform composition in which the individual substances remain distinct. The mixture forms at least two phases that remain separate from each other, with clearly identifiable properties. Two types of heterogeneous mixtures are colloids and suspensions.

Answer to Problem 1SSC

Seawater is a perfect example of a mixture as seawater contains an infinite number of components which are either soluble or insoluble. Seawater forms both homogeneous and heterogeneous mixture and solution.

Explanation of Solution

Seawater is a perfect example of a mixture as seawater contains an infinite number of components which are either soluble or insoluble. Seawater forms both homogeneous and heterogeneous mixture and solution. Seawater forms a colloid or suspension with dirt and clay particles which is a heterogeneous mixture, and it is also a homogeneous mixture that is formed by dissolved substances like sodium chloride, magnesium chloride, calcium salt, etc. So, seawater is a perfect example of a mixture.

Conclusion

Seawater forms both homogeneous and heterogeneous mixture and solution. Seawater forms a colloid or suspension with dirt and clay particles.