chem

2. Wood has a ____ potential to create heat.
3. _____ is the heat content that is stored in a system.
4. Heat energy always moves from the hot substance to the _____ substance.
11. In an endothermic reaction, the energy is on the _____ side.
13. Energy cannot be created or ____, only moved from one place to another.
15. In an exothermic reaction, the enthalpy of the products is _____ than the enthalpy in the reactants.
16. _____ energy is the energy that is stored in a substance.
17. When there is a decrease in temperature in the surroundings, the H is _____.
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 ______.

1. Heat energy of a substance = its _____ energy + its potential energy.
5. Heat loss in a system is a_____ reaction.
6. Heat energy is also called ______ energy
7. When there is an increase in temperature in the surroundings, the H is ___.
8. More ____ = more potential energy.
9. When the thermal energy of a substance ___, its particles move faster.
10. Heat gained in a system is a _____ reaction.
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.
14. In an exothermic reaction, the energy is on the ____ side.
18. It is ____ to measure how much heat energy is in a system.
19. In an endothermic reaction, the enthalpy of the products is ____ than the enthalpy of the reactants.