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Khan Academy: 2757 producten

Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere. All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get …

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Organic chemistry: Formation of acetals

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How aldehydes react with alcohols via an acid-catalyzed mechanism to form acetals. Organic chemistry Sal and Jay cover topics covered in co…

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Health and medicine: Blue Cross and Blue Shield

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Sal and Dr. Baker talk a bit about Blue Cross and Blue Shield Health and medicine The medical world can be a confusing place. Patients, the…

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Chemistry: Oxidation state trends in periodic table

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Trends in common oxidation states for main group elements. Chemistry Did you know that everything is made out of chemicals? Chemistry is th…

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Organic chemistry: Sn1 carbocation rearrangement (advanced)

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Example reaction showing Sn1 mechanism where substrate with six membered ring forms five membered ring product via alkyl shift. Organic che…

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Health and medicine: How do we make blood clots?

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Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

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High school biology: Co-dominance and Incomplete Dominance

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Come learn about Co-dominance and incomplete dominance and how they differ from complete dominance. By Ross Firestone. High school biology …

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Organic chemistry: Formation of oximes and hydrazones

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How aldehydes and ketones can react with hydroxylamine to form oximes or hydrazine to form hydrazones. Organic chemistry Sal and Jay cover …

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Organic chemistry: Optical activity

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How optically active compounds rotate plane polarized light Organic chemistry Sal and Jay cover topics covered in college organic chemistry…

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Organic chemistry: Sulfonation

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Sulfonation of benzene. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basi…

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High school biology: Welcome to the reproductive system

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High school biology The reproductive system Topic: Science Learn about all the sciences, from physics, chemistry and biology, to cosmology …

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Biology: Breaking down photosynthesis stages

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Breaking down photosynthesis into light dependent reactions and Calvin cycle. Biology Life is beautiful! From atoms to cells, from genes to…

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Biology: Animal development: We're just tubes

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Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes. Biology Life is beautif…

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Organic chemistry: Friedel-Crafts alkylation

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The mechanism of alkylation. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of…

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Organic chemistry: Carboxylic acid nomenclature and properties

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Naming carboxylic acids and analyzing their physical properties. Organic chemistry Sal and Jay cover topics covered in college organic chem…

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Biology: Fungi: Death Becomes Them

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Death is what fungi are all about. By feasting on the deceased remains of almost all organisms on the planet, converting the organic matter…