S3 Chemistry

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Across
  1. 3. This type of compound has a carbon to carbon double bond.
  2. 4. Decreasing the particle size, increases the _________ area.
  3. 7. Protons and neutrons are in this part of the atom.
  4. 8. Increasing this, increases the rate of reaction.
  5. 11. A mixture of two or more elements, at least one of which is a metal.
  6. 12. Metal + acid --> _________ + hydrogen
  7. 14. The mass number = number of protons + number of ___________ .
  8. 15. This is an example of a covalent network.
  9. 17. These are found on energy levels.
  10. 18. Average rate = change in _________ / time taken.
Down
  1. 1. The mass of an electron.
  2. 2. The symbol of this metal is K.
  3. 5. Carbon dioxide is a _____________ molecular compound.
  4. 6. A family of compounds with the same general formula is called a ____________ series.
  5. 9. When monomers react together they form a __________ .
  6. 10. A chemical reaction that releases energy to the surroundings is ____________ .
  7. 13. The mass of a proton.
  8. 16. Sodium chloride is an __________ compound.
  9. 19. The ________ number of iron is 26.