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Annale

Medhd
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Medhd EsTATcion venanta !

Medhd

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Bonjour,

concernant l’annale 2020 session 1 QCM 16 item B je ne comprends pas pourquoi le N perd son H et le CH2 devient CH3.

Merci d’avance !

 

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laurazépam tic tat

laurazépam

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Coucou, 

C'est pour ça que l'item est faux ! En mésomérie il y a seulement un déplacement de charges (et donc d'électrons) et pas d'atomes ! 

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