chemistry 🧪🦠
what is electroylisis
the process of passing on electrical current through a substance to split it up into ions
cathode
negatively charged electrode
anode
positively charged electrode
cation
positive ion
anion
negative ion
anodes info
lose electrons
oxidised
cations info
gain electrons
reduced
cathode
the negatively charged electrode by which electrons enter an electrical device
corosion
corosion is the destruction of materials by chemical reactions with substances in the enviornment
how to prevent corosion
painting
greasing
electroplating
low grade ore
an ore with low amounts of a material in it
advantages of copper extraction
can be used for electrical wiring
ductile- used in plumbing
disadvantages of copper extraction
destruction of habitats
chemicals may leech into soil-pollution
wasted rock
high electrical energy is required to extract snd purify the rock
bioleaching definition
a method used to extract metals frol their ore using living organismd such as bacteria
bioleaching method
1. bacteria is added to low grade ored
2. they feed on the ore creating a solution of ions called leachate
3. the copper solutions are purified using displacement reactions on electrolysis
phytomining definition
a method to extract copper metal from low grade copper ore in soil using plants
phytomining method
1. put mustard seeds on low grade ore
2. water- allow plante to grow
3. cut down and burn
4. add sulphuric acid to dissolve the copper snd copper sulfate
5. electrolysis