Thermochemistry

2. These types of reactions are always exothermic
4. The unit used for energy
7. The type of energy that is measured in thermochemistry
9. During an exothermic the temperature of the surroundings _____________
12. On the x-axis of an enthalpy level diagram
13. Must be reached for a reaction to take place
15. When this metal is added to an acid an exothermic reaction takes place
17. Net gain in energy from reactants to products
20. Can be used to measure energy flow in or out of a reaction
21. The process of an ionic compound splitting into it's ions when it is dissolved in water
23. Cannot be created or destroyed only transferred
24. The unit used when measuring mass
26. When bonds are __________ energy is released from the reaction

1. In a chemical equation (aq) stands for ________
3. The symbol used in chemistry to represent change
5. The place from which phase changes and reactions absorb energy
6. Used to measure the volume of a solution
8. The numbers that represent molar ratios in chemical equations
10. Used to measure temperature
11. When this chemical is added to ammonium thiocyanate the test-tube gets very cold
14. The lowest temperature on the kelvin scale
16. This phase change is endothermic
18. Calculated using mass/volume
19. The lowest energy state of water
22. These do not appear in a balanced ionic equation
25. Has one of the highest specific heat capacities