C1, Metals and crude oil 0.0 / 5 ? ChemistryCrude oil, cracking and hydrocarbonsGCSEAQA Created by: emmajane_Created on: 27-05-14 12:15 What is a metal ore and how are they retrieved? A rock containing a metal, or a metal compound, with a high enough concentration to makie it economically worth extracting. Retrieved by mining 1 of 16 Name the 3 methods of extraction Electrolysis, reacted with carbon or hydrogen 2 of 16 How is iron extracted from its ore and what is the process at which oxygen is removed? In a blast furnace and oxygen removed by reduction reactions 3 of 16 How is copper extracted and how it is purified? Extracted by smelting and purified by electrolysis 4 of 16 Whatth process of phytomining? Some plants dissolve copper compounds through their roots. The plants are burned to produce an ash with contains the copper compounds 5 of 16 What is the process of bioleaching? Some bacteria absorbs copper compunds. They produce solutions called leachates, comtaining the copper compounds 6 of 16 How can copper be extracted from copper salt solutions? By using iron scrapes. 7 of 16 Why are aluminium and titanium so useful? and how Because they resist corrosion becaue they are covered in a thin layer of oxides and are lowdensity (lightweight for their size) 8 of 16 Why isn extracting titanium and aluminium very expensive? Becauae it involves many stages and lage amounts of energy are needed 9 of 16 Name 2 things that aluminium is used for and 2 things that titanium is used for A= Aircrafts and cooking foil T= Artificial joints and nuclear power stations 10 of 16 What are crude oils and what is the formula for them? Hydrocarbons and CnH2n+2 11 of 16 What are alkenes and what does this mean? They are saturated hydrocarbons so carbon atoms are joined by single bonds. They are unreactive apart from burning and combustion 12 of 16 What is distillation and when does it work? A process at which pure liquids can be separated from mixtures of liquids and works when the liquids have different boiling points 13 of 16 What happens as you go up the fractional distillation column? Name 3 things The hydrocarbons have- lover viscosity, l;ower boiling points and higher flamibility 14 of 16 Where do hydrocarbons with different boiling points condense in the fractional distillation column condense? high= at bottom of column low= at top of column 15 of 16 What is the top and bottom of the fractional distillation column like? Hot at the bottom and cold at the top 16 of 16
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