Chemistry - Metals C1.3
- Created by: janellebxx
- Created on: 22-02-16 17:16
Metals
- There are over 80 metals in the periodic table
General Properties of metals
- good conductors of heat and electricity
- high melting point
- high boiling point
- ductile ( can be drawn into wires)
- shiny (when rubbed)
- sonorous
- malleable
- dense
Oxidation - to give oxygen
Reduction - to lose oxygen
Carbon + copper oxide → Copper + Carbon dioxide
C + 2CuO → 2Cu + Co2
Carbon is oxidised because it gains oxygen
Copper is reduced because it loses oxygen
Most reactive metals usually corrode fastest in oxygen / damp air
Least reactive metals usually corrode slowest
Carbon is able to reduce a metal oxide to a metal
Ore - an ore is a rock containing enough metal so that it is economic to extract
the higher the metal on the reactive series the more powerful the extraction and the more expensive. E.g Potassium, sodium are extracted via electrolysis whereas Gold and silver are extracted naturally from the earth's crust
.e..g
Bauxite is the ore of Aluminium
it contains Aluminium Oxide mixed with other substances such as sand. Before the extraction of…
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