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10:45
YouTube
SciShow
The 5 Most Dangerous Chemicals on Earth
Can you imagine a substance so deadly that even a millionth of a gram could kill you? They explode when you touch them. They can even disable you with their horrifying smell. Join Hank Green for a new terrifying episode of SciShow that will introduce you to the most dangerous chemicals in the world. ---------- Like SciShow? Want to help support ...
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