Composti

From: Victor Frankenstein <fpga.101xyz_at_gmail.com>
Date: Sun, 19 Sep 2010 20:31:35 +0200

Perch� in quasi tutti i composti della chimica compaiono quasi sempre
l'ossigeno e l'idrogeno ?

Ciao
Received on Sun Sep 19 2010 - 20:31:35 CEST

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