Mixtures and Solutions

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded together. Examples include salad, air, and sand.

Front

What is a solution?

Back

A solution is a special type of mixture where one substance (the solute) dissolves in another (the solvent). An example is saltwater.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a solvent, such as how salt dissolves in water.

Front

Which solids dissolve in water to create a solution?

Back

Salt and lemonade powder dissolve in water to create a solution.

Front

What is the method to separate a mixture of iron nails from sand?

Back

A magnet can be used to separate iron nails from sand.

Front

How can you separate salt from water?

Back

Evaporation is used to separate salt from water by heating the solution until the water evaporates.

Front

What happens to salt when it dissolves in water?

Back

When salt dissolves in water, it breaks down into its individual ions, making a solution.

Front

What is the difference between a mixture and a solution?

Back

A mixture can be separated by physical means, while a solution is a homogeneous mixture where the solute is dissolved in the solvent.

Front

What is an example of a solid that does not dissolve in water?

Back

Sand does not dissolve in water.

Front

What is the role of a solvent in a solution?

Back

The solvent is the substance that dissolves the solute; in saltwater, water is the solvent.