SL Chem Thermo

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Across
  1. 3. products in an exothermic reaction are ___ stable than reactants
  2. 6. reduces activation energy
  3. 7. Shakira's home country
  4. 8. ___'s law= ∆H of a process is the sum of the ∆H of its steps
  5. 9. in an exothermic reaction, ∆H is ___
  6. 13. unit of energy
  7. 15. ___ are more stable in an endothermic process
  8. 16. product of complete combustion
  9. 19. energy stored in chemical bonds
  10. 20. number of national parks in Oregon
  11. 21. total energy of a system; heat
  12. 22. method of calculating heat change by measuring temperature change
  13. 23. number of bonds in C2H6
  14. 24. Mrs Bullock's first car was a 1982 Honda ___
  15. 26. number of bonds in C2H4
Down
  1. 1. ∆Hf is the heat of ___
  2. 2. reaction between a hydrocarbon and oxygen
  3. 4. product of incomplete combustion
  4. 5. energy to break 1 mole of bonds
  5. 10. specific heat is the heat needed to raise 1 __ by 1oC
  6. 11. units for ∆H are __/mol
  7. 12. temperature is the average __ energy
  8. 14. reaction with positive ∆H
  9. 17. chemical symbol for Oganesson
  10. 18. ∆H
  11. 25. combustion and neutralization are both ___ reactions