How does Soap Work?
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21:05
Making Soap
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6:15
Which is better: Soap or hand sanitizer? - Alex Rosenthal and Pall Thordarson
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13:57
What is Saponification? Structure and Action of Soaps and Detergents // HSC Chemistry
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13:43
Making liquid soap
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5:35
A Better Way To Picture Atoms
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42:19
I Bought Industrial Waste to Invent Heat Batteries (Salt PCMs)
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2:16:18
Uzak Şehir 15. Bölüm
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28:49