2.2 Solutions and Solubility

What is a solution?

• A liquid that cannot dissolve anything

• A mixture where a solute is dissolved in a solvent

• A solid substance

• A gas mixed with a liquid

Match the following definitions with their corresponding terms.

• A substance that is dissolved in a solution

• A mixture of liquids

• A solution containing a gas

• A solid that dissolves in a solvent

• A combination of two or more liquids

• The liquid that dissolves the solid

• A substance that can dissolve in a liquid

• A gas dissolved in a liquid

What is a solvent?

• The solid that dissolves in a liquid

• A gas dissolved in water

• A liquid in which the solute is dissolved

• The final solution

Which solution contains more solute particles?

• Dilute solution

• Concentrated solution

• Saturated solution

• Insoluble solution

What does it mean for a solid to be soluble?

• It cannot dissolve in water

• It evaporates in air

• It can dissolve in a solvent like water

• It melts at a high temperature

Which of the following substances is soluble in water?

• Iron filings

• Sodium chloride

• Sand

• Oil

What is an insoluble substance?

• A solid that dissolves in water

• A solid that will not dissolve in water

• A liquid that evaporates

• A gas that cannot dissolve

What happens when a solution becomes saturated?

• More solute dissolves

• No more solute can dissolve

• The solution evaporates

• The solvent changes color

How do you compare the solubility of different solutes?

• By checking how fast they dissolve

• By measuring how much solute dissolves in a known amount of solvent

• By observing the color of the solution

• By heating the solvent

What does temperature generally do to the solubility of most solutes?

• Increases it

• Decreases it

• Keeps it the same

• Makes it evaporate