extracting metals from their ores Flashcards
1
Q
what is a metal ore?
A
a rock that contains enough metal to make it economically worthwhile extracting metal from it.
2
Q
an example for metal ore
A
the man aluminum ore is called bauxite - its aluminum oxide
3
Q
how can metals get extracted?
A
chemically or electrolysis
4
Q
what does electrolysis do?
A
it purify’s the extract metals
5
Q
how can metals be extracted chemically?
A
by reduction using carbon
6
Q
when an ore is reduced, what is removed?
A
oxygen
7
Q
if metals are higher than carbon in the reactivity series, how do they have to be extracted?
A
electrolysis
8
Q
if metals below carbon in the reactivity series, how do they have to be extracted?
A
by reduction using carbon
