chem

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Across
  1. 2. Wood has a ____ potential to create heat.
  2. 3. _____ is the heat content that is stored in a system.
  3. 4. Heat energy always moves from the hot substance to the _____ substance.
  4. 11. In an endothermic reaction, the energy is on the _____ side.
  5. 13. Energy cannot be created or ____, only moved from one place to another.
  6. 15. In an exothermic reaction, the enthalpy of the products is _____ than the enthalpy in the reactants.
  7. 16. _____ energy is the energy that is stored in a substance.
  8. 17. When there is a decrease in temperature in the surroundings, the H is _____.
  9. 20. In any heat transfer process, the heat will continue to transfer from hotter object to the cooler object until the temperatures of both substances / objects are the ______.
Down
  1. 1. Heat energy of a substance = its _____ energy + its potential energy.
  2. 5. Heat loss in a system is a_____ reaction.
  3. 6. Heat energy is also called ______ energy
  4. 7. When there is an increase in temperature in the surroundings, the H is ___.
  5. 8. More ____ = more potential energy.
  6. 9. When the thermal energy of a substance ___, its particles move faster.
  7. 10. Heat gained in a system is a _____ reaction.
  8. 12. You are holding a glass of water. The heat is being transferred from your hand into the glass and it feels cold because you are _____ energy.
  9. 14. In an exothermic reaction, the energy is on the ____ side.
  10. 18. It is ____ to measure how much heat energy is in a system.
  11. 19. In an endothermic reaction, the enthalpy of the products is ____ than the enthalpy of the reactants.