Mixtures and Solutions

Which of the following is a characteristic of homogenous mixtures?

• The components can be easily separated by physical means.

• The composition is uniform throughout the mixture.

• The mixture has visibly distinguishable components.

• The mixture settles upon standing.

What is a solute in a solution?

• The component that is present in the largest amount.

• The component that dissolves the other component.

• The component that is dissolved in the solvent.

• The component that increases the boiling point of the solution.

Which of the following is a characteristic of heterogeneous mixtures?

• They have a uniform composition.

• They cannot be separated into their components.

• They have visibly distinguishable components.

• They are always liquid.

What is a solvent in a solution?

• The component that is present in the smallest amount.

• The component that dissolves the solute.

• The component that is dissolved by the solute.

• The component that decreases the freezing point of the solution.

Which of the following is an example of a homogeneous mixture?

• Sand and water

• Oil and vinegar dressing

• Saltwater

• Chocolate chip cookies

What distinguishes a solution from other types of mixtures?

• It can only be in the liquid state.

• It has a variable composition.

• Its components are not chemically bonded but are mixed at the molecular level.

• It cannot be separated by filtration.

Which of the following mixtures is an example of a heterogeneous mixture?

• Vinegar

• Brass

• Granite

• Air

In a saltwater solution, what is the solvent?

• Salt

• Water

• Both salt and water

• Neither salt nor water

Which of the following is true about solutes?

• They are always solids.

• They are always liquids.

• They can be gases, liquids, or solids.

• They do not affect the boiling point of a solution.

What happens to the boiling point of a solvent when a solute is dissolved in it?

• It decreases.

• It increases.

• It remains unchanged.

• It first decreases, then increases.