Mixtures

Question 1

What are mixtures

Answer 1

Mixtures are substance that are NOT chemically joined up

Question 2

What’s a pure substance

Answer 2

A pure substance is made up of only one type of elements or only one type of compound and cannot be separated without a chemical reaction

Question 3

What does a mixture contain?

Answer 3

A mixture contains 2 or more different substance (Like sea water or air) that can be separated very easily by using physical methods.
A mixture has the properties of its constituent parts

Question 4

What happens when you add a solid to a liquid

Answer 4

When you add a solid to a liquid the bonds holding the solute particles together sometimes break
The solute particles mix with the particles in the liquid, forming a solution

Question 5

Why does the water not overflow when salt is added to the water

Answer 5

Water does not overflow because the salt fills the gaps between water particles

Question 6

Give the definitions for the seven
solute, solvent, solubility, solution, soluble, insoluble, saturated

Answer 6

Solute - solid being dissolved
solvent - The liquid it’s being dissolved into
solution - a mixture of a solute and a solvent that doesn’t separate out
saturated - Solution that won’t dissolve any solute at that temperature
soluble - Means it will dissolve
solubility - Measure of how much solute will dissolve
insolubility - Means it will NOT dissolve

Question 7

How can solubility increase

Answer 7

Solubility increases with temperature
higher temperature more solute will dissolve in the solvent because particles move faster