Extracting metals using carbon (Edexcel GCSE Chemistry): Flashcards
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Practise the cards
13 cards from this deck
What is a metal ore?
What is a metal ore?
A rock with enough metal for economical extraction
Form of metal in most ores
Form of metal in most ores
Oxide (compound with oxygen)
Process to extract metals from ores
Process to extract metals from ores
Reduction
Unreactive metals found uncombined in nature
Unreactive metals found uncombined in nature
Gold and platinum
Why is carbon used for metal extraction?
Why is carbon used for metal extraction?
Cheap, widely available, and effective
Carbon's two roles in extraction
Carbon's two roles in extraction
Reducing agent and fuel
What does reduction with carbon remove?
What does reduction with carbon remove?
Oxygen from metal oxide
Which metals can be extracted with carbon?
Which metals can be extracted with carbon?
Metals less reactive than carbon
Example metal extracted by carbon
Example metal extracted by carbon
Iron
Where is iron extracted?
Where is iron extracted?
Blast furnace
Products of carbon reduction
Products of carbon reduction
Metal and or
Method for metals above carbon in reactivity
Method for metals above carbon in reactivity
Electrolysis
Cost of electrolysis vs carbon reduction
Cost of electrolysis vs carbon reduction
Electrolysis is more expensive