Chemistry Revision

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Across
  1. 4. Solid carbon dioxide turning directly into gaseous carbon dioxide at room temperature
  2. 6. Type of bonding that refers to the attraction between the positive ions and a ‘sea’ of delocalised electrons
  3. 8. Type of formula that shows the simplest whole number ratio of the different atoms or ions in a compound
  4. 10. A noble gas with electronic configuration of 2,8,8
  5. 12. An apparatus to measure the exact volume of a solution
  6. 13. Combines with hydrogen to produce ammonia
  7. 14. A process to obtain water from aqueous sodium chloride
  8. 15. Movement of particles from a region of higher concentration to a region of lower concentration
Down
  1. 1. The process used to separate the individual dyes in ink
  2. 2. Forms an oxide with macromolecular structure
  3. 3. Substance made up of only one type of atom
  4. 5. Different atoms with same number of protons but different number of neutrons
  5. 7. An element that exists as both diamond and graphite
  6. 9. Type of solution that can dissolve no more solute at a given temperature
  7. 11. Amount of substance that contains 6.02x10^23 particles