CC Y10 chemistry revision crossword

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Across
  1. 3. The amount of product that is made in a chemical reaction
  2. 7. The most reactive group 7 element
  3. 11. A substance that speeds up a chemical reaction without being permanently changed itself
  4. 12. A process in which energy is transferred from the surroundings to stores of energy in chemical bonds
  5. 14. The name of the process that is used to make ammonia
  6. 17. A substance that changes colour based on the pH
  7. 19. A reaction between an acid and a base
  8. 23. The loss of electrons
  9. 24. A process in which energy is transferred from stores of energy in chemical bonds to the surroundings
  10. 26. A negative ion
  11. 31. A reaction that can go in the forward and backwards direction
  12. 33. This is where an electron is found in an atom
  13. 35. The number of electrons in the outer shell of an alkali metal
  14. 36. The type of formula that tells us the simplest whole number ratio of atoms of an element in a substance
  15. 38. Atoms of an element with the same number of protons but different numbers of neutrons
  16. 39. A base that is soluble in water
  17. 41. The least reactive alkali metal
  18. 42. A charged particle that is formed by the loss or gain of electrons by an atom
  19. 43. The substance formed when an acid reacts with a base
  20. 45. A row in the periodic table
  21. 46. The colour of chlorine gas
  22. 47. A rock that contains enough of a compound to extract a metal for profit
  23. 49. A system that no substances can enter or leave
  24. 50. The substance that is made in a chemical reaction
  25. 52. A positive ion
  26. 53. The negative electrode
  27. 54. The neutral particle present in the nucleus of an atom
Down
  1. 1. A vertical column in the periodic table
  2. 2. The temperature does this in an exothermic reaction
  3. 4. An allotrope of carbon consisting of a sheet that is one atom thick
  4. 5. The minimum amount of energy needed by colliding particles for a reaction to happen
  5. 6. A molecule which is made up of two atoms, for example a chlorine molecule
  6. 8. Unreactive
  7. 9. The gain of electrons
  8. 10. The name of the variable that is kept the same during an experiment
  9. 13. pH7
  10. 15. An allotrope of carbon that is incredibly hard
  11. 16. A reaction in which a more reactive element displaces a less reactive element from one of its compounds
  12. 18. A bond which involves the electrostatic force of attraction between oppositely charged ions
  13. 20. The breakdown of an ionic compound using electrolysis
  14. 21. What two particles must do in order for a reaction to take place between them
  15. 22. The technique used to separate an insoluble solid from a liquid
  16. 25. The general name for the elements in group 7
  17. 27. An unreactive metal that is found in its native state
  18. 28. An allotrope of carbon that conducts electricity
  19. 29. An insoluble solid
  20. 30. The colour of copper sulfate crystals
  21. 32. An ionic compound that is molten or dissolved in water and conducts electricity
  22. 34. The colour of copper oxide
  23. 37. The reactant that runs out first in a chemical reaction
  24. 40. The positive electrode
  25. 44. The constant that tells us the number of particles in one mole of a substance
  26. 48. A reaction in which oxidation and reduction take place
  27. 49. When a gas turns into a liquid
  28. 51. The type of bonding when electrons are shared