Archiv 2004 des Forums der Umweltdatenbank

Chemie

  • Ramona Hottgenroth
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13 Apr. 2005 01:00 #566 by Ramona Hottgenroth
Chemie was created by Ramona Hottgenroth
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Wodurch entsteht Wasserhärte



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  • Hilal
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24 Aug. 2005 01:00 #594 by Hilal
Replied by Hilal on topic Re: Chemie
Hey, hab fragen zu wasserstoffbrücken, kann mir vielleicht jemand helfen?
1. WIeviele aktive und passive Stellen für H-Brücken haben die folgenden Moleküle: H2O , NH3 , CO2 , N2 , CH3OCH3 ?
(die zahlen sind tiefgestellt....)



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  • Emre
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20 Sep. 2005 01:00 #597 by Emre
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wie nennt man den Ergebnis eines Trennvorgangs





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  • anna
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11 Mai 2006 01:00 #611 by anna
Replied by anna on topic Re: Chemie
hi ich hab ne porb.
methanolsynthese kan mir das jemand erklären ???
bitte gruß anna



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