Understanding Mixtures and Solutions

What is a mixture?

• A combination of two or more substances

• A new chemical compound

• A single substance

• A type of gas

Which of the following is NOT a mixture?

• Fruit salad

• Iced tea

• Ants

• Sand and water

What is a solution?

• A mixture where substances are evenly distributed

• A type of gas

• A solid substance

• A mixture where substances are not evenly distributed

In a solution, what is the solute?

• The substance that dissolves

• The substance that does not dissolve

• The liquid part

• The gas part

What is solubility?

• The ability of a substance to evaporate

• The ability of a substance to sink

• The ability of a substance to float

• The ability of a substance to dissolve

Tags

NGSS.MS-ESS2-4

What happens when a solution reaches saturation?

• The solution becomes a gas

• The solute stops dissolving

• The solute starts to dissolve more

• The solvent evaporates

Why is fruit salad not considered a solution?

• Because the fruits are not evenly distributed

• Because it is a liquid

• Because it is a gas

• Because it is a new substance

How can the substances in a solution be separated?

• By adding more solute

• By freezing

• By heating to evaporate the solvent

• By mixing more

What is the main difference between a mixture and a solution?

• Mixtures are always liquids

• Solutions are always gases

• Mixtures can have uneven distribution, solutions have even distribution

• Solutions cannot be separated

What is the solvent in a sugar-water solution?

• Carbon dioxide

• Air

• Water

• Sugar