| What determines that Metal needs to be Extracted via Electrolysis? | -If its more Reactive than Carbon [Reactivity Series] then it Has to use Electrolysis |
| Why does the Metal [That you want to be Extracted via Electrolysis] need to be Molten? | -This is so the Ions can be Moved, so therefore when a Current is given in, the Metal can be Separated |
| Describe how Aluminium is Extracted from its Ore: Aluminium Oxide | -The Ore is first Dissolved in a Molten Cryolite [Another Aluminium Compound] allowing the Ions to Move Around
-Then, in Electrolysis, the Aluminium is formed at the Cathode where it then Sinks, and is Siphoned off. Oxygen is made at the Anode |
| What can be done to Impure Copper? Why is it Bad in the First Place? | -Impure Copper isn't very Useful due to it being a Poor Conductor of Electricity, and Copper is very Common in Wirings
-Electrolysis can be Done to Purify the Copper |
| Describe how Copper is Purified | -Have the Positive Electrode [Anode] be just a Lump of Impure of Copper, which will therefore Dissolve
-Have the Electrolyte [Solution] be Copper Sulphate
-Have the Anode just be a Pure Piece of Copper, and you will see more Pure Copper being Added on to it |
| Why are Scientists looking into finding New Ways of Extracting Low-Grade Metals? [Ores that have very little amounts of the Metal] | -This could be due to the Growing Demand of Metals, which can lead to Shortages, so being able to get the Most Amount from the Ore can be very Helpful |
| Explain how Bioleaching Works | -This is simply using Bacteria to get the Metals Separated from their Ores
-Bacteria gets the Energy from the Bonds between the Atoms, making the Separation clear.
-The Leachate [Solution made from the Bacteria] will have Metal Ions, so using Displacement that has a more Reactive Metal, or Electrolysis can give you the Metal |
| Explain how Phytoextraction Works | -This is simply making Plants grow in Solis that have Metal Compounds
-The Plants are going to get Rid of the Metals, so they just Store it in their Leaves
-Plants can be Harvested, Dried or Burned in a Furnace making Ash. This Ash will Contain the Metal Compounds therefore allowing it to be Extracted via Displacement or Electrolysis |
| What are the Disadvantages to Bioleaching and Phytoextraction? | -It simply needs a Long Period of Time |
