Materials_Chemical Reaction

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Across
  1. 4. Synthetic polymer is divided into linear, ........, cross-linked.
  2. 11. It means many.
  3. 14. Two hydrogen atoms and one oxygen atom.
  4. 17. Can change, a number before an element or a compound.
  5. 18. Always written on the left.
  6. 21. A number after and element and you can't change.
  7. 22. Out, released.
  8. 24. Polymers with low melting point and reusable.
  9. 26. Inorganic, non-metallic solids.
  10. 27. Element "K".
  11. 28. You can't bring it back.
  12. 29. Law of ................. of mass.
  13. 30. Human bones are composed of ............. and hydroxyapatite.
Down
  1. 1. Made up of repeating smaller molecules.
  2. 2. Products are always H2O and CO2.
  3. 3. Producing heat energy and is exothermic.
  4. 5. H2O, CO2, C6H12O6.
  5. 6. What to do with coefficient and subscript?
  6. 7. Synthetic polymer that are often used daily.
  7. 8. Na,K,Fe,Mg,N,C,Ar.
  8. 9. In, absorbed.
  9. 10. Produced after a reaction.
  10. 12. An example of a natural polymer.
  11. 13. Another word for equal.
  12. 15. Polymer that is man-made.
  13. 16. Easy to break.
  14. 19. A process when monomers are put together.
  15. 20. One sign of chemical reactions is a change in ...........
  16. 23. It means chemically non-reactive.
  17. 25. Clay-based ceramics.