Unit 1- Getting Metals from Rocks Flashcards
0
Q
How is a metal extracted by reduction with carbon?
A
The ore is reacted with carbon which removes the oxygen.
1
Q
How is most metal found?
A
In ores. This is usually an oxide of the metal.
2
Q
What determines whether a metal can be reduced?
A
Metals below carbon in the reactivity series can be extracted by reduction.
3
Q
How is metal extracted which is more reactive than carbon?
A
Electrolysis.
4
Q
How is copper purified?
A
Copper is easily extracted by reduction with carbon. This impure copper is then purified via electrolysis.
5
Q
Where does the carbon for reduction come from?
A
Coke which comes from heated coal.
