MIXTURES AND SOLUTIONS

What is a mixture?

• A chemical reaction between two elements

• A physical combination of two or more substances

• A single pure substance

• A substance that can't be separated

Which of the following is a heterogeneous mixture?

• Saltwater

• Fog

• Garden salad

• Sugar water

A mixture forms when substances mix and combine chemically.

• True

• False

What type of mixture is muddy water?

• Solution

• Suspension

• Colloid

• Pure substance

Why does fog classify as a colloid?

• It is made of large particles

• It settles over time

• Its particles are too small to settle

• It contains salt

What is a foam?

• A solution of gases

• A suspension in air

• A colloid with gas bubbles in a liquid or solid

• A pure substance with bubbles

Whipped cream is an example of foam.

• True

• False

What is an aerosol?

• A solution with sugar

• A suspension in gas

• A colloid with solid or liquid particles in air

• A mixture of gases and liquids that settle

Which of the following is a homogeneous mixture?

• Garden salad

• Muddy water

• Airborne dust

• Sugar water

Which mixture allows you to clearly see its different parts?

• Homogeneous mixture

• Colloid

• Heterogeneous mixture

• Solution