Producing and Recycling Metals (VCE SSCE Chemistry): Flashcards
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Which 2 metals found naturally in pure elemental form?
Which 2 metals found naturally in pure elemental form?
Platinum and gold
What is an ore?
What is an ore?
Rock with minerals concentrated enough for viable extraction
3 main stages of metal production from ores
3 main stages of metal production from ores
Mining, ore processing, metal extraction
Extraction method for most reactive metals (Na, K, Al)
Extraction method for most reactive metals (Na, K, Al)
Electrolysis
Linear economy model approach
Linear economy model approach
'Take-make-dispose' or 'take-make-waste'
Why are metals ideal for recycling?
Why are metals ideal for recycling?
Re-melted and reshaped without losing properties
Energy saved recycling aluminium vs. ore extraction (%)
Energy saved recycling aluminium vs. ore extraction (%)
95%
Ferrous scrap metal contains which element?
Ferrous scrap metal contains which element?
Iron (magnetic and easily separated)
Iron ore mineral mined in Australia (formula)
Iron ore mineral mined in Australia (formula)
Haematite ()
E-waste described as fastest-growing source of what?
E-waste described as fastest-growing source of what?
Hazardous waste globally