2.2: Solutions and Solubility

Question 1

What is solubility?

Answer 1

Solubility is the ability of a substance (solute) to form a solution with another substance (solvent).

Question 2

Insoluble substances ___________ mix with water and remain ________.

Answer 2

do not; separated

Question 3

True or False
Insoluble substances only dissolve slightly in the water.

Answer 3

false

Question 4

Which of the below is a soluble substance?
sand
stone
chalk powder
salt

Answer 4

salt

Question 5

What is a saturated solution?

Answer 5

A saturated solution is a solution that contains the maximum amount of solute that dissolves in a solvent.

Question 6

What happens in a supersaturated solution?

Answer 6

No more solute will dissolve and crystals may form.

Question 7

In an unsaturated solution, __________ solute will dissolve.

Answer 7

more

Question 8

If solution A has 30cm3 of water and 70cm3 of salt and solution B has 50cm3 of water and 50cm3 of salt, which solution is more concentrated?

Answer 8

Solution A because it has more salt (solute).