Extracting metals using carbon (Edexcel GCSE Chemistry Combined Science): Flashcards
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Practise the cards
13 cards from this deck
Definition of metal ore
Definition of metal ore
Rock with enough metal to make extraction economically worthwhile
Form of metal in most ores
Form of metal in most ores
Oxide (compound of metal with oxygen)
Unreactive metals found uncombined in nature
Unreactive metals found uncombined in nature
Gold and platinum
Why carbon is used for extraction (2 properties)
Why carbon is used for extraction (2 properties)
Cheap and widely available
Carbon's dual role in metal extraction
Carbon's dual role in metal extraction
Reducing agent and fuel
What reduction with carbon does
What reduction with carbon does
Removes oxygen from metal oxide
Metals that can be extracted using carbon
Metals that can be extracted using carbon
Metals less reactive than carbon
Metal oxide + Carbon
Metal oxide + Carbon
Metal + or
+ C
+ C
Fe +
Where iron is extracted from its ore
Where iron is extracted from its ore
Blast furnace
Examples of metals extracted by carbon reduction
Examples of metals extracted by carbon reduction
Iron, zinc, lead
Extraction method for metals above carbon
Extraction method for metals above carbon
Electrolysis
Cost of electrolysis vs carbon reduction
Cost of electrolysis vs carbon reduction
Electrolysis is more expensive