What is an exothermic process?
Heating & Cooling Curves Review

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Chemistry
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9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An exothermic process is a chemical reaction or physical change that releases heat to the surroundings.
2.
FLASHCARD QUESTION
Front
What is an endothermic process?
Back
An endothermic process is a chemical reaction or physical change that absorbs heat from the surroundings.
3.
FLASHCARD QUESTION
Front
In a heating curve, what does a flat line indicate?
Back
A flat line indicates a phase change where the temperature remains constant while the substance changes from one phase to another.
4.
FLASHCARD QUESTION
Front
During which phase change does a substance melt?
Back
A substance melts during the transition from solid to liquid.
5.
FLASHCARD QUESTION
Front
During which phase change does a substance freeze?
Back
A substance freezes during the transition from liquid to solid.
6.
FLASHCARD QUESTION
Front
What happens to the temperature of a substance during a phase change?
Back
The temperature remains constant during a phase change.
7.
FLASHCARD QUESTION
Front
In which region of a heating curve would you find a substance in both solid and liquid phases?
Back
You would find a substance in both solid and liquid phases in the region where melting occurs.
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