CHEMICAL REACTIONS

1234567891011121314151617181920
Across
  1. 2. a gas that is present within a humans stomach to digest there foods
  2. 3. when energy is absorbed from its surrounding
  3. 5. corrosive substances that break down substances
  4. 6. a substance that is produced in all neutralisation reaction
  5. 7. states that matter can be neither destroyed nor created during a chemical reaction
  6. 10. the result that is formed towards the end of a reaction
  7. 11. a substance that reacts with oxygen releasing heat
  8. 15. a substance participating in a chemical reaction
  9. 16. when an acid and base react with each other
  10. 19. Solid, Liquid or Gas
  11. 20. react with solid substances which then break them down
Down
  1. 1. A process that involves rearrangement of the molecular or ionic structure of a substance
  2. 4. states that a compound, no matter how it is formed, always contains the same relative amounts of each element
  3. 8. the smallest particle of a chemical element that can exist
  4. 9. are substances that are used to tell whether a substance is a Acid or Base
  5. 12. a substance that is incapable to dissolve
  6. 13. describes how acidic or basic a substance is
  7. 14. have a bitter taste and feel slippery or soapy to touch
  8. 17. release energy
  9. 18. a substance that is able to dissolve