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This week is National Chemistry Week and in honor of our beloved Chem nerds, here are 25 weird chemistry facts you probably didn't know. Today is Mole Day. Every year on October 23 from 6:02am to 6:02pm, chemistry students and chemists celebrate Mole Day in honor of Avogadro's number, the number of carbon atoms in…

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Because it's National Mole Day Custom design shirt #MoleDay #AvagadroNumber #HappyMoleDay

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