Metals and Ores Flashcards
1
Q
What does Reduction mean?
A
Removal of oxygen
2
Q
What does oxidation mean?
A
Addition of oxygen
3
Q
What is an ore?
A
Is a substance found in the Earth’s Crust
metal atoms with other elements
4
Q
Some very unreactive metals can…
A
be found uncombined with other elements e.g. gold
5
Q
Can metals be displaced
A
Yes if it is lower then its reactivity.
6
Q
How do you extract Iron?
A
Iron Ore - Reduction - Iron (Blast Furnace)
Coke - Oxidation - Carbon
7
Q
How do you extract Aluminium?
A
Aluminium oxide is heated at high temperature making it melt.
This allows positively charged ions to move to the negative cathode.
This is then extracted as bulk aluminium metal.
8
Q
Draw the Electrolysis of Aluminium
A
