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CCB1


Hippo_thalamus

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hellooooo! dans le ccb1 de rangueil, qcm4.D "le trou anionique est diminué" je pensais que pour le calculer il fallait faire Na-Cl-Bi mais pourtant dans la correction c'est une formule différente? merciiiiii à vous 😉 

PS: je n'ai pas trouvé ce sujet sur le forum j'espere que ce n'est pas de la redite..

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