Other questions in this quiz

2. what is extracting copper using carbon called

  • smellting
  • melting
  • carbonising

3. whats the equation for scrap iron

  • copper oxide + iron --> iron oxide + copper
  • iron oxide + copper --> copper oxide + iron

4. what are ores

  • rocks that contain no metal so have to be extracted
  • rocks that contain enough metal to be economically extracted
  • liquids that contain enough metal to be economically extracted

5. what gets dissolved in bioleaching

  • copper
  • rock
  • bacteria

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