Chemistry Term 1

Question 1

Tell me the arrangement of Solids

Answer 1

The particles are very close together
The particles are ordered
The particles don’t move

Question 2

Tell me the arrangement of Liquids

Answer 2

The particles are quite close together
The particles are arranged randomly
The particles move quite freely

Question 3

Tell me the arrangement of Gases

Answer 3

The particles are wide apart
The particles are arranged randomly
The particles move freely

Question 4

What is sublimation?

Answer 4

Sublimation - Change of state: Solid to Gas

Question 5

What is diffusion

Answer 5

Diffusion is the movement of particles from an area of high concentration to an area of lower concentration until it reaches equilibrium

Question 6

How can you speed up diffusion?

Answer 6

You can speed up diffusion through temperature (hotter), size (smaller), distance (shorter)

Question 7

What is a Solution

Answer 7

Solution – This is a mixture of a solute and a solvent

Question 8

What is a Soluble

Answer 8

Soluble – This means a substance that will dissolve

Question 9

What is an Insoluble

Answer 9

Insoluble – This means a substance that will not dissolve

Question 10

What is the Solubility

Answer 10

Solubility – This is a measure of how much a solute will dissolve

Question 11

What is a solute

Answer 11

Solute - This is the solid being dissolved

Question 12

What is saturation?

Answer 12

Saturation – This is a solution that wont dissolve any more solute at a specific temperature

Question 13

What is a solvent

Answer 13

Solvent – This is the liquid that the solid being dissolved into

Question 14

What are the 4 separation techniques? What are their meanings?

Answer 14

Distillation - To separate two liquids with different boiling points or a solution.
Evaporation - the process of turning from liquid into vapour
Filtration - To separate an insoluble substance from a mixture.
Chromatography - A method for separating a mixture of soluble substances.

Question 15

What is a Filtrate

Answer 15

Filtrate – The filtered solvent/solution from the process of Filtration

Question 16

What is the residue

Answer 16

Residue – The insoluble solid left behind from the process of Filtration

Question 17

What is the process of Distillation

Answer 17

1. Heating: The solution is heated
2. Vaporization: The solvent evaporates
3. Condensation: The vapour is condensed
4. Collection: The vapour fully condenses and is collected

Question 18

What is the process of Filtration

Answer 18

1. The solution is poured into the Filter Funnel
2. The solution gets filtered and the insoluble solids in it gets separated from the solution (Residue)
3. The filtered solution is collected (Filterate)

Question 19

What is the process of Chromatography

Answer 19

1. Setup the apparatus/equipment
2. Draw a pencil baseline around 1cm about the bottom of the paper
3. Put ink dot(s) on the pencil baseline
4. Allow the paper to touch the solvent by around 5mm (millimetres)
5. Watch the solvent rise through the paper and the ink separate