chemistry

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Across
  1. 5. substance, that is the main component of air.
  2. 6. a physic process that converts solids directly to gaseous state when heated.
  3. 7. chemicals, which produce OH--ion in aqueous.
  4. 8. a chemical reaction, which acid and base react to water.
Down
  1. 1. a container, which is used to mix up different chemicals.
  2. 2. the substance, that mix with other chemicals to form a homogeneous solution.
  3. 3. a separation procedure that separates two chemicals with different boiling temperature.
  4. 4. substance, which is made up of many repeating units.
  5. 9. chemicals, which provide proton in aqueous solution.
  6. 10. the building block, that can make up the molecule.