extracting metals with electrolysis Flashcards
if metals are more reactive than carbon, how are they extracted?
by using electrolysis of molten compounds
once the metal is melted what happens?
an electric current is passed through
where is the metal discharged at?
cathode
where is the non-metal discharged at?
anode
how is copper purified?
by electrolysis
why isn’t it useful that the impure copper cant conduct electricity?
a lot of the copper is to use an electrical wing
what’s bioleaching?
uses bacteria to separate from their ores
example of bleaching
copper can be separated from copper sulfate. the bacteria gets energy from the bonds between atoms in the ore, separating out the metal from the ore.
what’s a leachate?
the solution produced by the process
what’s phytoextraction?
growing plants in soil that contains metal compounds.
why do the metals gradually build up in the leaves?
the plants cant use or get rid of the metals
