Instructional Video
Khan Academy

Khan Academy: Synthesis Using Alkynes: Synthesis Using Alkynes

9th - 10th
Khan Academy spells out synthesis using alkynes. [11:49]
Instructional Video
Khan Academy

Khan Academy: Batteries: Zinc Copper Cell (Reduction Oxidation)

9th - 10th
Video lecture explains zinc copper cell while providing an example of reduction-oxidation reaction. [1:05]