CHEMICAL REACTIONS

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Across
  1. 1. a substance that is incapable to dissolve
  2. 6. a substance that reacts with oxygen releasing heat
  3. 7. Solid, Liquid or Gas
  4. 8. a substance participating in a chemical reaction
  5. 10. when an acid and base react with each other
  6. 11. states that a compound, no matter how it is formed, always contains the same relative amounts of each element
  7. 18. A process that involves rearrangement of the molecular or ionic structure of a substance
  8. 20. a gas that is present within a humans stomach to digest there foods
Down
  1. 2. have a bitter taste and feel slippery or soapy to touch
  2. 3. release energy
  3. 4. states that matter can be neither destroyed nor created during a chemical reaction
  4. 5. corrosive substances that break down substances
  5. 9. a substance that is produced in all neutralisation reaction
  6. 12. are substances that are used to tell whether a substance is a Acid or Base
  7. 13. the result that is formed towards the end of a reaction
  8. 14. describes how acidic or basic a substance is
  9. 15. a substance that is able to dissolve
  10. 16. react with solid substances which then break them down
  11. 17. the smallest particle of a chemical element that can exist
  12. 19. when energy is absorbed from its surrounding