OCR 21st Century Science - Chemistry C1

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  • Created by: icanteven
  • Created on: 29-03-16 11:47

1. The remaining % of the air is mainly ...

  • Other gases with tiny amounts of argon and carbon dioxide
  • Argon with tiny amounts of carbon dioxide and other gases
  • Carbon dioxide with tiny amounts of argon and other gases
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Other questions in this quiz

2. Pollutants are released by natural processes such as ______ and by human activity such as _____

  • volcanoes and burning fuels
  • Burning fuels and volcanoes

3. Coal is a carbon. In a plentiful air supply it burns to form .....

  • carbon dioxide
  • soot
  • Carbon

4. In a limited supply of air Coal burns to form...

  • Carbon Monoxide
  • Carbon Dioxide
  • Soot

5. Non-metal atoms combine to make

  • protons
  • molecules
  • electrons


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