Metals Flashcards
1
Q
What is it called when a metal is purified and oxygen is removed?
A
Reduction
2
Q
What is an ore?
A
An ore is a rock with enough metal to make it worth extracting
3
Q
Where are metals found?
A
Metals are found within the earth crust, either as an ore or a pure metal
4
Q
What is an alloy?
A
An alloy is made because pure metals are very weak. This makes them stronger to use
5
Q
How do we extract copper?
A
PhytoMining and bio leaching
6
Q
How are gold and silver extracted?
A
Electrolysis
7
Q
What happens if the metal is unreactive?
A
You use electrolysis
