C6.1.6 - Extracting metals Flashcards
1
Q
What is an ore?
A
Rock or mineral that contains enough metal to make it economical to extract the metal
2
Q
What is found in malachite ore?
A
Copper carbonate
3
Q
What is found in bauxite ore?
A
Aluminium oxide
4
Q
What is found in haematite ore?
A
Iron(III) oxide
5
Q
How can a metal be extracted?
A
If it is less reactive than carbon then carbon then cheaper methods are used but if it is more reactive than carbon electrolysis is used
6
Q
What happens in the 2 stages of extracting copper from copper(II) sulfide?
A
Stage 1: First the copper(II) sulfide is ‘roasted’ in air
Stage 2: The copper(II) oxide is heated with carbon
