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Extracting metals (Reactivity series (Shows how reactive metalsare,…
Extracting metals
Reactivity series
Shows how reactive metalsare
Potassium
Sodium
Calcium
Magnesium
Aluminium
Carbon
Zinc
Iron
Hydrogen
Copper
Silver
Gold
Displacement reactions
Redox reactions
More reactive metals replaces less reactive ones
Oxidation is the loss of electrons
Reduction is the gain of electrons
Reaction is simultaneous
Reactivity of metals
How metals react with acid shows their reactivity
Some metals react with water
More reactive=faster reaction
Creates hydroen
Extracting metals using carbon
Ores contain metal
Extracted by reduction
Found in the earths crust
Unreactive metals are present as uncombined elements
Life cycle asesments
Choice of material
Metals mined from ore
Other materials made from crude oil
Manufacture
Use lots of energy and rescources
Causes pollution
Creates waste products
Product use
Paint gives off toxic fumes
Burning fuels releases greenhouse gases
Disposal
Recycling
Burnt
Landfill
Recycling
Conserves ressources and energy
Protects the environment
Important economic benefits
Dynamic equilibrium
Reversible reactions go forward and backward