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Card 6
Front
The percentage of copper ore in the contaminated land is low.It would be too expensive to extract from this land by the traditional method.
Back
Card 7
Front
Extracting copper from this land by the traditional method would have a major environmental impact. Give one reason why.
Back
Card 8
Front
It is economical to use scrap iron to get copper. Suggest why
Back
Card 9
Front
suggest one disadvantage of phytomining compared to the traditional method
Back
Card 10
Front
A mixture of the olive oil, water and egg yolk was shaken and left to stand. The olive oil and water do not separate. Explain how
Back
Card 11
Front
Name the two sub-atomic particles in the nucleus of an aluminium atom.
Back
Card 12
Front
Why is there no overall electrical charge on an aluminium atom?
Back
Card 13
Front
Why does aluminium react with iron oxide?
Back
Card 14
Front
Copper is now extracted from ores containing a low percentage of copper compounds. Suggest two reasons why
Back
Card 15
Front
The extraction of pure copper is expensive. Give one reason why.
Back
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