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Handout
Khan Academy

Khan Academy: Gibbs Free Energy and Spontaneity

For Students 9th - 10th
Explanation of Gibbs Free Energy and Spontaneity. Includes formulas and examples.
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Handout
Chem4kids

Chem4 Kids: Equilibrium Basics

For Students 3rd - 8th
This Chem4Kids.com site explains what equilibrium is in easy-to-understand language. Content includes a great example, as well as exploring different things which effect the position of equilibrium.