2.12 Mixtures and Solutions

Which of these statements explains the relationship among elements, compounds, and mixtures?

• Elements are made of compounds and mixtures.

• Both compounds and mixtures are made up of elements.

• Mixtures are made of elements, and elements are made of compounds.

• Compounds are made of mixtures, and mixtures are made of elements.

What is the main difference between a homogeneous mixture and a heterogeneous mixture?

• The number of ingredients in each will differ.

• The components of a homogeneous mixture are evenly distributed.

• A homogeneous mixture is easier to make.

• The components of a heterogeneous mixture are spaced evenly throughout.

The diagram shows the process of distillation of saltwater into pure water. Where is the pure water in the diagram?

• A

• B

• C

• D

Which method is appropriate for separating a mixture of iron and aluminum?

• using a magnet

• Distillation

• Evaporation

• Observing different densities

Which component in this mixture has the lowest density?

• Glass

• Water

• Sawdust

• Sand

In a solution of salt and water, which component is the solute?

• Salt

• Water

• Beaker

• Oxygen

Which of these is an example of a solution?

• Vegetable Soup

• Table Salt

• Sand

• Saltwater