Extraction of metals Flashcards
1
Q
What is an ore
A
An ore is a rock that contains enough of the metal to make it economic to extract it.
2
Q
What is an example of a metal that is found as a metal itself (no rock)
A
Gold is an example because it is unreactive
3
Q
What are most metals found as
A
Compounds, that’s why they need a reaction to extract them
4
Q
How are metals less reactive then carbon extracted.
A
From their oxides with a reduction reaction with carbon
5
Q
How are metals more reactive than carbon extracted
A
They are extracted through electrolysis of the molten metal compound
6
Q
Lead oxide + carbon →heat→
A
Lead + carbon dioxide
