Thermochemistry Crossword Puzzle

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Across
  1. 3. Known for his thermochemistry studies, which began in 1839
  2. 7. Cannot be created or destroyed, only transferred
  3. 9. Reaction where energy is released
Down
  1. 1. Amount of energy required to raise one gram of water one degree celsius
  2. 2. Only true isolated system
  3. 4. Reaction where energy is absorbed
  4. 5. Everything contained within the universe
  5. 6. Heat content of a chemical system
  6. 8. Also known as the Law of Constant Heat Summation