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Chassis/frame
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In this video we show you how to craft the chassis for the Bit-zee using a $3 piece of Lexan and tap light housing. Created by Karl Wendt.

Subject:
Applied Science
Engineering
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Karl Wendt
Date Added:
10/08/2012
Chemical bonds
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Chemical bonds are the glue that hold molecules together. We will learn about the different kinds of bonds, ways chemists draw bonds and molecules, and how the type of chemical bonding affects the bulk properties of a material. We will cover electronegativity, Lewis dot structures, VSEPR, bond hybridization, and ionic, covalent, and metallic bonds.

Subject:
Chemistry
Physical Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Date Added:
07/15/2021
Chemical equilibrium
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Many chemical reactions are reversible, and the forward and backward reactions can occur at the same time. When the rate of the forward reaction is equal to the rate of the backward reaction, we call that a dynamic equilibrium. We will learn how equilibrium can be described by the equilibrium constant K, and how different factors than can affect the chemical equilibrium.

Subject:
Chemistry
Physical Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Date Added:
07/15/2021
Chemical reactions and stoichiometry
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We are now going to delve into the heart of chemistry. We learn ways of representing molecules and how molecules react. To do this, we'll even think about "how many" of a molecule we have using a quantity called a "mole".

Subject:
Chemistry
Physical Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Date Added:
07/15/2021
Chinese Imperial Dynasties
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An overview of the truly Imperial Chinese Dynasties including the Qin, Han, Sui, Tang, Song, Yuan, Ming and Qing. Discussion of innovations during Tang and Song China.

Subject:
History
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Sal Khan
Date Added:
07/26/2021