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Across 4. This shShows the number of atoms of the different elements in one molecule of a substance. 7. 2 or more elements chemically combined 9. A solid that does not dissolve is described this way. 11. Used to separate similar substances e.g ink, drugs in blood, different sugars in urine 12. The line on a chromatogram is drawn using a ------ as this will not separate. 16. Process of obtaining crystals by evaporating the solvent from the solution. 17. That liquid that runs through the filter paper 18. Movement of particles 20. a substance that dissolves is called the s----- 21. Solid that remains in filter paper 22. Tiny solid partciles in sa suspension can b=be separated out by this process.

Down 1. The liquid in which a solute dissolves. 2. distance moved by a chemical / distance moved by solvent front 3. Method used to separate a mixture of liquids based on their boiling points. 5. Small particles move ________ than large ones 6. Molecule made up of 2 atoms 8. A process of evaporation followed by condensation 10. Smallest particle that can have a separate independent existence 13. Separate an insoluble solid from a liquid by this method 14. Temperature at which a liquid evaporates 15. Describes 2 liquids that mix completely e.g alcohol and water 19. Elements contain only one type of this particle.