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Unit 9
Chemistry
| Question | Answer |
|---|---|
| Define thermochemistry. | The study of energy changes that occur during chemical reactions and changes in state. |
| What are IMFs? | Intermolecular forces. They are weakened when melted, strengthened when frozen and are formed during condensation. |
| At what temp does something melt/freeze? | They're both at the same temp. |
| What happens to particles as they boil? | The liquid loses particles with the most energy. The remaining particles will have a lower total energy and lower temp. |
| Define sublimation. | When a substance changes from a solid to a gas without going th |