Electrolysis

Question 0

What is needed for electrolysis

Answer 0

An electrolyte, a molten solution with free ones to conduct electricity

Question 1

What is electrolysis

Answer 1

The splitting up of a substance using electricity.

Question 2

If there are more than two free ions in the electrolyte what will happen

Answer 2

The more reactive element will stay in the electrolyte unless there is a higher concentration of that substance.

Question 3

CATHODE

Answer 3

Negative

Question 4

ANODE

Answer 4

Positive

Question 5

What is aluminium a main ore

Answer 5

Bauxite

Question 6

What is aluminium a melting point

Answer 6

2000*

Question 7

What is added to aluminium to reduce the melting point

Answer 7

Cryolite

Question 8

What are the electrode made of when extracting aluminium

Answer 8

Carbon

Question 9

What will form at the cathode when extracting aluminium

Answer 9

Aluminium

Question 10

What will form at the anode when extracting aluminium

Answer 10

Oxygen

Question 11

Where is the cathode in extracting aluminium

Answer 11

‘Tub’

Question 12

When electroplating what do you put at the anode

Answer 12

The thing you are plating with

Question 13

When electroplating. What do you put at the cathode

Answer 13

The one you want to plate

Question 14

Where do positive ions move in electrolysis

Answer 14

Cathode. To gain electrons

Question 15

Where do negative ions move in electroplating

Answer 15

To the anode. To loose electrons

Question 16

What is bio leaching

Answer 16

When BACTERIA is used to separate copper from copper sulphide.

Question 17

What is phytomining

Answer 17

When plants are grown in copper rich soil, the plants can’t use the copper so it builds up in the leaves. The plants are harvested and burned, the copper is left in ashes