Year 10 Chemistry

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Across
  1. 4. Reaction where one reactant breaks into multiple products
  2. 8. Ion made from multiple bonded atoms
  3. 12. Reaction where two solutions form a precipitate
  4. 13. Positively charged subatomic particle
  5. 14. Heat energy
  6. 16. Diagram showing energy changes during a reaction
  7. 18. Chemical equation with equal atoms on both sides
  8. 20. Charge of an ion
  9. 24. Insoluble solid formed in a reaction
  10. 25. Reaction that absorbs heat energy
  11. 27. Law stating matter is not created or destroyed
  12. 30. Amount of solute particles in a solution
  13. 31. Positively charged ion
  14. 32. When particles hit one another
  15. 34. Theory explaining reactions using particle collisions
  16. 35. List of metals ordered by reactivity
  17. 37. Energy required to start a chemical reaction
Down
  1. 1. Minimum energy needed for successful collisions
  2. 2. Substance formed during a chemical reaction
  3. 3. Measure of average heat energy of particles
  4. 5. Ability of a substance to dissolve in water
  5. 6. Smallest particle of an element
  6. 7. Amount of exposed outer area of a substance
  7. 9. Reaction where a more reactive metal replaces a less reactive metal
  8. 10. Starting substance in a chemical reaction
  9. 11. Process of reducing concentration by adding water
  10. 15. Electrons in the outer shell involved in bonding
  11. 17. Reaction that releases heat energy
  12. 19. State symbol for a substance dissolved in water
  13. 21. Charged particle formed by gaining or losing electrons
  14. 22. Negatively charged subatomic particle
  15. 23. Number placed before a formula in an equation
  16. 26. Speed of a chemical reaction
  17. 28. Substance that speeds up a reaction without being used up
  18. 29. Negatively charged ion
  19. 33. Reaction where multiple reactants form one product
  20. 36. How often something occurs