Biological methods to extract metals (Edexcel GCSE Chemistry): Flashcards
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Traditional source of copper
Traditional source of copper
High-grade ores
Two biological copper extraction methods
Two biological copper extraction methods
Phytomining and bioleaching
Why copper used in electronics
Why copper used in electronics
Excellent electrical conductivity
Name two copper alloys
Name two copper alloys
Brass and bronze
What phytomining uses
What phytomining uses
Plants to extract copper from low-grade ores
What plants absorb in phytomining
What plants absorb in phytomining
Minerals, including copper compounds
Phytomining environmental advantage
Phytomining environmental advantage
Less harmful than traditional mining
Phytomining disadvantage
Phytomining disadvantage
Slow process
What bioleaching uses
What bioleaching uses
Bacteria to extract copper ions
Name of solution from bioleaching
Name of solution from bioleaching
Leachate (rich in copper ions)
Bioleaching environmental benefit
Bioleaching environmental benefit
No carbon emissions
Where copper ions go in electrolysis
Where copper ions go in electrolysis
Negative electrode (reduced to solid copper)
Why iron displaces copper
Why iron displaces copper
Iron is more reactive than copper