Crossword Puzzle

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Across
  1. 1. when both sides of something is balanced
  2. 4. elements and compounds before a chemical reaction takes place
  3. 7. to change the position of something
  4. 8. a particular kind of matter with uniform properties
  5. 9. the smallest particle of a chemical element that can exist
Down
  1. 2. of mass to save the amount of mass
  2. 3. the ending substance of an equation
  3. 5. relating to chemistry, or the interactions of substances as studied in chemistry
  4. 6. anything that has mass and takes up space
  5. 7. the starting substance of an equation