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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Chemistry: VSEPR for 4 electron clouds
VSEPR for molecules with four electron clouds including examples for tetrahedral, trigonal pyramidal, and bent molecules. Chemistry Did you…
VideoGratis10 minuten
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Chemistry: Buffers and Henderson-Hasselbalch
Getting an intuitive understanding of buffers using le Chatelier's principle. Derivation of the Henderson-Hasselbalch equation. Chemistry D…
VideoGratis15 minuten
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Biology: Evaporative cooling
Evaporative cooling. Why sweating cools you down. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations …
VideoGratis5 minuten
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Health and medicine: Sheehan syndrome
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoGratis5 minuten
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Organic chemistry: Carboxylic acid naming
Carboxylic acids are named following IUPAC nomenclature. In general, carboxylic acids are named based on the number of carbons in the longe…
VideoGratis5 minuten
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Health and medicine: Overview of neuron structure
This video introduces the structure and structural types of neurons. By Matt Jensen. Health and medicine The medical world can be a confusi…
VideoGratis7 minuten
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Organic chemistry: Synthesis of substituted benzene rings I
Synthesis practice problems. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of…
VideoGratis8 minuten
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Organic chemistry: Amine naming 2
Amine naming 2. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic high s…
VideoGratis6 minuten
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Biology: The hydrologic and carbon cycles: Always recycle!
Hank explains how carbon and water are recycled through ecosystems and the biosphere. Biology Life is beautiful! From atoms to cells, from …
VideoGratis9 minuten
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Chemistry: 2015 AP Chemistry free response 2a (part 1 of 2)
Moles of ethene produced from dehydration reaction with ethanol. From 2015 AP Chemistry free response 2a, part 1 of 2. Chemistry Did you kn…
VideoGratis11 minuten
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Biology: Fluid mosaic model of cell membranes
The fluid mosaic model describes the cell membrane as a tapestry of several types of molecules (phospholipids, cholesterols, and proteins) …
VideoGratis9 minuten
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Health and medicine: Blue Cross and Blue Shield
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…
VideoGratis10 minuten
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Biology: The plants & the bees: Plant reproduction
Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular …
VideoGratis10 minuten
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Chemistry: sp³ hybridization
sp³ hybrid orbitals and properties of sigma bonds. Chemistry Did you know that everything is made out of chemicals? Chemistry is the study …
VideoGratis11 minuten
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Organic chemistry: Resonance structures and hybridization
Resonance structures, hybridization of orbitals, and localized and delocalized electron density. Organic chemistry Sal and Jay cover topics…
VideoGratis12 minuten