C2 Chemical resources

1. What can sodium hydroxide and chlorine be used to make?

  • Swimming pool sterilisers
  • Solvents and medicines
  • Margarine and butters
  • More brine
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2. What is the alloy amalgam used for?

  • Housing boilers
  • Filling teeth
  • Car engines
  • Making instruments

3. During the electrolysis of brine, what is made at the anode?

  • Sodium
  • Chlorine
  • Oxygen
  • Hydrogen

4. How are igneous rocks formed?

  • Lava turns into magma
  • Sedimentary rocks are put under high temperatures and pressure
  • Magma cools and solidifies
  • Metamorphic rocks are corroded

5. What is produced when an acid and a base react?

  • Salt and carbon dioxide
  • Salt and water
  • Carbon dioxide and water
  • Carbon monoxide and water

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