Across
- 3. The maximum mass of a solute that will dissolve in 100g of a solvent at a fixed temperature.
- 5. The electrostatic attraction between positively charged metal ions and the negatively charged sea of delocalised electrons.
- 8. A technique used to separate an insoluble solid from a solution.
- 11. bond The electrostatic attraction between oppositely charged ions.
- 16. a subatomic particle with a mass of approximately 1/1840.
- 18. A technique used to separate pure water from salt solution.
- 20. A small group of covalently bonded atoms.
- 24. Atoms with the same number of protons but a different number of neutrons.
- 25. A piece of apparatus used to add a variable volume of a solution to the reaction vessel.
- 27. The electrostatic attraction between a shared pair of electrons and the nuclei of two atoms.
- 31. A type of equation that must be comprised of chemical formulae, showing the reactants and products of a reaction.
- 33. When a solid changes state to form a gas.
- 34. The structure found in diamond.
- 36. a subatomic particle with a charge of +1.
Down
- 1. Dissolves in water.
- 2. The structure found in ionically bonded substances.
- 4. A substance that released hydrogen ions in solution.
- 6. The number of protons in an atom of carbon.
- 7. The structure found in small covalently bonded substances.
- 9. The insoluble solid that is collected on the filter paper.
- 10. A technique used to separate liquids with similar boiling points.
- 12. A soluble base.
- 13. Made up of protons, neutrons and electrons.
- 14. point The temperature at which a substance will melt or freeze.
- 15. The solution which passes through filter paper and is collected.
- 17. A column of elements in the Periodic Table which share similar chemical properties.
- 19. A row of elements in the Periodic Table.
- 21. Does not dissolve in water.
- 22. A number calculated by dividing the distance travelled by a spot of dye by the distance reached by the solvent front.
- 23. The process whereby particles mix and spread out over time, moving from a higher to a lower concentration.
- 26. The number of neutrons in an atom of fluorine.
- 28. A substance where the hydrogen from an acid has been replaced with another positive ion such as a metal or ammonium ion.
- 29. A substance which neutralises alkalis.
- 30. A charged particle.
- 32. An acid which only slightly dissociates into hydrogen ions in solution.
- 35. A technique used to separate different dyes in a solution.