Perfect 10

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Across
  1. 4. - a figure or symbol
  2. 7. - a substance takes part in and undergoes change
  3. 8. and closed system - an open and closed can exchange both energy
  4. 9. equation - any chemical reaction the absorbs heat from it environment
  5. 10. reaction- a process that involves rearrangement
  6. 11. - a substance that increases the ruts of a chemical change
  7. 12. - cause(a substance)
Down
  1. 1. - a thing or person the result of an action process
  2. 2. reaction - A chemical reaction a chemical reaction in which less energy is needed
  3. 3. - a multiplier factor that measures heat from it environment
  4. 5. of mass - a principle stating mass cannot be created or destroyed
  5. 6. equation - the symbolic representation of a chemical equation