Mixtures and Solutions Test Review MGH Chapter 3

Front

What is a solution?

Back

A solution is a homogeneous mixture where one substance (the solute) is dissolved in another (the solvent), resulting in a single phase.

Front

What is the difference between a mixture and a solution?

Back

A mixture can be heterogeneous or homogeneous, while a solution is always homogeneous. In a mixture, the components can often be separated physically.

Front

What happens when salt is dissolved in water?

Back

The salt dissociates into its ions, becoming evenly distributed throughout the water, forming a solution.

Front

What is an example of a mixture that is not a solution?

Back

Sand mixed with water is a mixture but not a solution, as the sand does not dissolve.

Front

What is the role of a solvent in a solution?

Back

The solvent is the substance that dissolves the solute, typically present in a greater amount.

Front

What is the role of a solute in a solution?

Back

The solute is the substance that is dissolved in the solvent, typically present in a lesser amount.

Front

What happens to pebbles when stirred into water?

Back

Pebbles will sink to the bottom of the glass and remain unchanged, as they do not dissolve in water.

Front

True or False: All solutions are mixtures.

Back

True. All solutions are a type of mixture, specifically homogeneous mixtures.

Front

What are two examples of mixtures that are not solutions?

Back

Trail mix and fruit salad are both mixtures that do not form solutions.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition and appearance throughout.