Chemistry Chapter 3

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Extracting Metals

  • An ore is a rock that contains enough metal to extract it economically
  • unreactive metals are found in their native state 
  • The oxides of metals below carbon can be reduced by carbon to give the element
  • metals more reactive than carbon are extracted by electrolysis

Iron and steels

  • Pure iron is too soft for it to be useful
  • Carbon and other elements are added to iron to make alloys of

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