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by mhartl 4817 days ago
the chemical name of water is dihydrogen monoxide

But it's not. From La Wik [1]:

"Dihydrogen monoxide", shortened to "DHMO", is a name for water that is consistent with basic rules of chemical nomenclature, but is not among the names published by IUPAC and is almost exclusively used in humorous context.

[1] http://en.wikipedia.org/wiki/Dihydrogen_monoxide_hoax