chemistry

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Across
  1. 3. the study of the ratio between reactants
  2. 6. ion with a positive electrical charge
  3. 7. subatomic particle with a negative charge
  4. 9. a three dimensional description of the most likely
  5. 12. an ion with a negative electrical charge.
  6. 13. a chemical substance that contains hydrogen
Down
  1. 1. a substance that changes in a chemical reaction
  2. 2. the science and study of matter
  3. 4. unit of thermal energy
  4. 5. halogen with atomic number 17 and element symbol Cl
  5. 8. a homogeneous mixture
  6. 10. a chemical link formed between atoms in molecules
  7. 11. a substance that can accept hydrogen ions in water