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Answer the following questions in a clear and concise manner.
1. Was what you performed in this lab a physical (base particle did not rearrange) or chemical change (did rearrange).
2. Was what you performed in the lab exothermic or endothermic. Explain
2. what is NOT changing when a substance goes through a phase change like melting? What is the energy being used for?
3. Why can not liquid particles go anywhere?
4. What is updated definition of boiling?
5. What is the difference between a gas and a vapor?
6. What are the two things that make evaporation different from boiling?
7. How is the actual heating curve different from the one most books show?
8. Is phase changes or not phase changes (staying in same phase) require more energy, circle one.
9. What are the two things that are held constant (that most people don't talk about) when one is showing/explaining the heating curve?
10. In the space below or on the back of page, draw the actual heating curve (as we did in the lab in class) labeling axes.