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le doublet non liant de l'azote


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salut petite question le doublet non liant  de l'azote pour etres sur il est prioritère sur quoi pour déterminé Z et E ? 

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il y a 2 minutes, Lelea a dit :

salut petite question le doublet non liant  de l'azote pour etres sur il est prioritère sur quoi pour déterminé Z et E ? 

Sur rien 

Bonne chance a nous pour demain 

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