Front

What is a pure substance?

Back

A pure substance is a material that has a consistent composition and distinct physical and chemical properties, such as appearance, melting point, and reactivity.

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 clear appearance.

Front

What is a colloid?

Back

A colloid is a mixture where tiny particles are dispersed throughout another substance, and while they do not settle out, they can make the mixture appear cloudy.

Front

What is a suspension?

Back

A suspension is a heterogeneous mixture where solid particles are suspended in a liquid or gas and can settle out over time.

Front

Give an example of a homogeneous mixture.

Back

Coffee, mouthwash, and vinegar are examples of homogeneous mixtures.

Front

Give an example of a heterogeneous mixture.

Back

A salad is an example of a heterogeneous mixture, as its components can be easily distinguished.

Front

What distinguishes a solution from a colloid?

Back

A solution is clear and homogeneous, while a colloid may appear cloudy due to larger particles that do not settle.

Front

What is the main characteristic of a suspension?

Back

The main characteristic of a suspension is that the solid particles can settle out over time.

Front

What is an emulsion?

Back

An emulsion is a type of colloid formed when two liquids that do not mix (like oil and water) are combined.

Front

What is a foam?

Back

A foam is a colloid in which gas bubbles are dispersed in a liquid or solid.