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Organic Chemistry



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A series of free online Organic Chemistry videos.

E2 Reactions E2 Elimination Reactions
E1 Reactions E1 Elimination Reactions



Zaitsev's Rule


Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

Fraction Concoction Game


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