Luca's Crossword Puzzle

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Across
  1. 3. the positively charged particles which are
  2. 5. that have been chemically joined.
  3. 7. The smallest particle of a substance that all of the physical and chemical properties that substance
  4. 9. the unit of amount of substance
  5. 13. a mathematical relationship or rule
  6. 14. a substance made from two or more different
  7. 17. a substance that is present at the end of a chemical reaction
  8. 18. in relative amounts that can be varied
  9. 22. the amount of a substance measured in
  10. 24. (H2O)
  11. 25. a subatomic particle found in the nucleus of every atom except that of simple
Down
  1. 1. a particle of matter that uniquely defines
  2. 2. up to what is called the limit of solubility
  3. 4. a strong electrostatic attraction between
  4. 6. a negatively charged subatomic particle that can be either bound to an atom or free(not bound).
  5. 8. their reactions.
  6. 10. a substance that changes when it is combined with another substance in a chemical reaction
  7. 11. in the nucleus of an atom.
  8. 12. in symbols.
  9. 15. involves the loss of electrons
  10. 16. a homogenous mixture of two or more
  11. 19. the amount of matter
  12. 20. charged ions
  13. 21. involves the gain of electrons
  14. 23. a scientist who works with chemicals or