Thermochemistry

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Across
  1. 5. the total energy of a system
  2. 7. part of the universe we wish to study
  3. 8. energy changes in chemical reactions
  4. 9. divides a system from its surroundings
Down
  1. 1. determination of the heat
  2. 2. energy is absorbed
  3. 3. science of measuring the quantities of heat
  4. 4. energy is released
  5. 6. the strength required for physical activity
  6. 7. universe other than the system being studied