Metals Flashcards
1
Q
How is iron extracted and what is used
A
its reduced by carbon in a blast furnace
coke- carbon
limestone- calcium carbonate
hematite- iron ore
2
Q
what is oxidation and reduction
A
oxidation is the loss of electrons
reduction is the gain of electrons
3
Q
how are unreactive metals found
A
as a metal itself
4
Q
how are metals less reactive than carbon extracted
A
they’re extracted from their oxides by reduction with carbon.
5
Q
how are metals more reactive than carbon extracted
A
electrolysis of molten compounds
6
Q
what are 2 ways copper is extracted
A
bleaching- uses bacteria
phytomining- uses plants
7
Q
what do metal carbonates produce when they thermally decompose
A
metal oxide and carbon dioxide
