Across
- 1. Thermochemistry is the study of ______ changes when chemical reactions occurs
- 4. ______ is the example of endothermic reaction
- 5. _______ is a chemical reaction that absorbs heat from the environment
- 7. ______ is the example of exothermic reaction
- 8. As the reaction takes place, heat may be _______ or released into the environment
Down
- 2. ______ is a chemical reaction that releases heat into the the surroundings
- 3. the heat change can be detected by using the __________
- 6. how many types of reactions