Reaction and extraction of metals Flashcards
1
Q
using plants to extract metals is called?
A
phytomining
2
Q
Copper oxide reacts with carbon to produce copper and?
A
carbon dioxide
3
Q
Why do copper ions go to the negative electrode?
A
It has a positive ion and so is attracted the the negative electrode
4
Q
Why should copper not be disposed of in landfill sites?
A
High exposure of copper can be dangerous
5
Q
How could the reaction in the furnace cause environmental pollution?
A
It releases sulfur dioxide which causes acid rain
6
Q
Why is the extraction of pure copper expensive?
A
There are many stages and safety issues
