Chemical Formula and Equations

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Across
  1. 4. Same or equal
  2. 6. Change in which the composition of a substance changes
  3. 7. Much or many
  4. 8. Dealing with chemicals
  5. 11. Again or back
  6. 13. Characteristics that can be observed using the five senses, without changing or trying to change the composition of the substance
  7. 15. An expression which uses chemical symbols to represent a reaction
  8. 16. Mass of an object divided by its volume
Down
  1. 1. Region surrounding the nucleus of an atom, where electrons are most likely to be found
  2. 2. Matter that has the same composition and properties throughout
  3. 3. Change in which the form or appearance of matter changes, but not its composition
  4. 5. States that mass is neither created nor destroyed
  5. 9. A clue which helps identify a chemical reaction
  6. 10. Characteristics that cannot be observed without altering the sample
  7. 12. First or primary
  8. 14. Light