Chemistry

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Across
  1. 5. A bond which occurs between atoms within molecules
  2. 7. Compounds that have the same molecular formula but different structural formulae
  3. 10. a series of similar compounds which have the same functional group and have the same general formula, in which each member differs from the previous one by a single CH2 unit
  4. 14. Substance that increase the rate of the reaction but remains unchanged at the end of the reaction
  5. 16. A measure of the extent of a reaction, generally measured by comparing the amount of product against the amount of product that is possible
  6. 17. A weak force of attraction between molecules, ions, or atoms of noble gases
  7. 19. A sharing of at least one pair of electrons by two non-metal atoms
  8. 22. The electrode where oxidation takes place
  9. 24. A substance in which the hydrogen of an acid has been replaced by a cation
  10. 26. A transfer of electrons and subsequent electrostatic attraction
  11. 28. A system in which both energy and matter can be exchanged between the system and its surroundings
  12. 29. A measure of the tendency of an atom to attract a bonding pair of electrons
  13. 31. An acid that ionises completely in an aqueous solution
  14. 32. A system in which mass is conserved inside the system but energy can enter or leave the system freely
  15. 33. Solution of known concentration
  16. 34. Reactions which transforms thermal energy into potential energy
  17. 36. The minimum energy required to start a chemical reaction OR The energy required to form the activated complex
  18. 38. a compound in which there is at least one double and/ triple bond between carbon atoms
  19. 39. A bond between a positive kernel and a sea of delocalized electrons
  20. 40. A gain of electrons
  21. 41. The splitting of an ionic compound into its ions
  22. 42. The reaction of water with a molecular substance to produce ions
  23. 43. A substance that can act as either an acid or a base
Down
  1. 1. an atom or a group of atoms that form the centre of chemical activity in the molecule
  2. 2. A substance (agent) that donates electrons
  3. 3. Homogeneous mixture of solute and solvent
  4. 4. A high energy, unstable, temporary transition state between the reactants and products
  5. 6. A reaction involving the transfer of electrons
  6. 8. Reactions which transforms potential energy into thermal energy
  7. 9. A covalent bond involving unequal sharing of electrons leading to a dipole forming (as a result of electronegativity difference)
  8. 11. A loss of electrons
  9. 12. Mass in grams of one mole of that substance
  10. 13. A reaction of an ion (from a salt) with water
  11. 15. A covalent bond involving an equal sharing of electrons
  12. 18. A substance that can conduct electricity by forming free ions when molten or dissolved in solution
  13. 20. The point where an acid and a base have reacted so neither is in excess
  14. 21. a compound containing only carbon and hydrogen atoms
  15. 23. A substance (agent) that accepts electrons
  16. 24. Substance in which another substance is dissolved, forming a solution
  17. 25. Substance that is dissolved in the solution
  18. 27. Change in concentration per unit time of either a reactant or product
  19. 30. The electrode where reduction takes place
  20. 32. Number of amount of solute per unit volume of solution
  21. 35. An acid that only ionises partially in an aqueous solution
  22. 37. a compound in which all of the bonds between carbon atoms are single bonds