Chemistry Vocabulary

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Across
  1. 2. the smallest particle of an element that retains its identity
  2. 5. in motion
  3. 9. observed or measured without changing the composition
  4. 11. a substance present at the start of a reaction
Down
  1. 1. containing carbon
  2. 3. anything that has mass and occupies space
  3. 4. a substance produced in a chemical reaction
  4. 6. the study of the composition of matter
  5. 7. substance that contains two or more elements
  6. 8. the simplest form of matter
  7. 10. measure of amount of matter