C1 Chemistry - metals from rocks and the reactivity series Flashcards
1
Q
what is a metal ore?
A
its a rock that contains enough metal to extract metal from
2
Q
what is an oxide?
A
the ore of a metal
3
Q
how do metals get extracted from their ores?
A
using a chemical reaction
4
Q
what is redcution?
A
when a metal gets extracted from its ore using carbon, using energy and heat
5
Q
what is the reactivity series?
A
the position of a metal on whether it can be extracted from its ore by reduction
6
Q
if metals are higher than carbon in the reactivity series, how is it extracted?
A
by electrolysis
7
Q
”””” if its below carbon what happens?
A
reduction using carbon
8
Q
why does anything above carbon have to be extracted using electrolysis?
A
carbon can only take the oxygen away from metals which are less reactive than carbon itself
