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TED-Ed

What triggers a chemical reaction? - Kareem Jarrah

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36,279 Questions Answered

TEDEd Animation

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Chemicals are in everything we see, and the reactions between them can look like anything from rust on a spoon to an explosion on your stovetop. But why do these reactions happen in the first place? Kareem Jarrah answers this question by examining the two underlying forces that drive both endothermic and exothermic chemical reactions: enthalpy and entropy.

Watch the video and finish the Think section to complete the lesson.


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TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

Educator
Kareem Jarrah
Director
Darcy Vorhees
Animator
Tom Beuerlein
Script Editor
Emma Bryce
Narrator
Addison Anderson

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