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Chemistry | Science | Khan Academy
Chemistry is the study of the composition, properties, and reactivity of matter. This may be your first time taking chemistry, but chances are you know a lot already from observing the world around you. We will be covering the material in a first year introductory high school or college general chemistry course. A brief introduction to chemistry.
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Introduction to vitamins and minerals (video) | Khan Academy
Magnesium, also important for muscle contraction. Iron, this is in your hemoglobin, bonds to the oxygen, allows you to transport oxygen in your bloodstream and red blood cells. So these are all very valuable. And a lot of those foods that we just talked about that contain vitamins, they39;ll also contain minerals.
Video Duration: 6 minAuthor: Sal KhanInquire Now
Extractions (video) | Chemical processes | Khan Academy
Extraction can be done in your organic chemistry lab using these two main pieces of glassware. The first which is shown in blue is known as the separatory funnel, or the sep funnel for short. At the top of this, this has an opening through which you can pour in liquid.
Video Duration: 9 minAuthor: Angela GuerreroInquire Now
Introduction to vitamins and minerals | Biology foundations
Nov 29, 2017 · Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Video Duration: 6 minViews: 68.7KAuthor: Khan AcademyInquire Now
Roasting and calcination - extraction of metal | Chemistry
Sep 30, 2019 · Sulfide ores are roasted and carbonate ores are calcinated to convert them to oxide.
Video Duration: 4 minViews: 1823Author: Khan Academy India - EnglishInquire Now
Chemistry and mineralogy (article) | Khan Academy
Read and learn for free about the following article: Chemistry and mineralogy If you39;re seeing this message, it means we39;re having trouble loading external resources on our website. If you39;re behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
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Extraction of Metals: Ores and Minerals - Chemistry
The extraction of metals from ores is what allows us to use the minerals in the ground! The ores are very different from the finished metals that we see in buildings and bridges. Ores consist of the desired metal compound and the impurities and earthly substances called Gangue.
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Extraction of metals - Overview (video) | Khan Academy
Overview of processes used to extract metals from ores. If you39;re behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
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