4.5B Mixtures and Solutions

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that can be separated by physical means.

Front

What is a solution?

Back

A solution is a mixture where one substance (the solute) dissolves evenly in another (the solvent).

Front

What happens when sand is mixed with water?

Back

The sand does not dissolve; it sinks to the bottom of the water.

Front

How can you separate a mixture of salt and water?

Back

You can separate them by evaporation, where the water evaporates, leaving the salt behind.

Front

What is the best method to separate oil and water?

Back

Using a separating funnel is the best method to separate oil and water.

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into vapor, often used to separate a solute from a solvent.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solution.

Front

What is a solvent?

Back

A solvent is the substance that dissolves the solute in a solution.

Front

Can you separate a dissolved substance from a solution using a magnet?

Back

No, a magnet cannot separate dissolved substances from a solution.

Front

What is the role of a sieve in separating mixtures?

Back

A sieve is used to separate larger particles from smaller ones in a mixture.