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Newsletter n°13 : ICI

[Résolu] tut 4 qcm 5

Supporteur(s): leo_ebt, Candice.picard
Abonné(s): mamar

[Résolu] tut 4 qcm 5

Messagepar lanatomy » 18 Fév 2023, 17:36

Coucouu !
Alors désolééé d'avance pour la question absolument bête qui va suivre (rip mes connaissances en chimie), sur cet item à propos des liaisons ioniques :
"elles sont polarisées",
je me demandais, à propos du cours, quelles autres liaisons sont polarisées? J'ai un peu du mal avec ça mdrr c'est bête mais j'ai mis faux en pensant que c'était juste pour les liaisons dipolaires et que pour les ions ont disait plutôt ionique
Merci d'avance pour ton aide <3
lanatomy
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Re: tut 4 qcm 5

Messagepar Patafelix » 18 Fév 2023, 23:18

Comme je suis un énorme tuteur chômeur, je te mets un lien dans lequel tu trouveras ta réponse (enfin je l'espère) : https://www.carabinsnicois.fr/phpbb/vie ... es#p744152

Tu me dis si ça te conviens !!
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Re: tut 4 qcm 5

Messagepar lanatomy » 19 Fév 2023, 09:18

Parfaittt, donc j'en déduis que toutes sont polarisée sauf les hydrophobes c'est bien ça ?
lanatomy
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Re: tut 4 qcm 5

Messagepar Patafelix » 19 Fév 2023, 13:41

Non, les liaisons de Van der Waals ne sont pas non plus polarisées, donc pour faire un récap :

Liaisons polarisées : Ioniques, hydrogènes et dipolaires
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Re: tut 4 qcm 5

Messagepar lanatomy » 19 Fév 2023, 14:31

Super merciii !
lanatomy
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Re: tut 4 qcm 5

Messagepar lison.giordanengo » 06 Avr 2023, 15:55

Coucou !

J'arrive un peu (beaucoup) après la guerre mais du coup, est-ce qu'il y a une différence entre dire que les liaisons de Van Der Waals sont polarisées et qu'elles mettent en jeux des liaisons polarisées.
C'est un item d'annales, compté vrai : les liaisons de Van Der Waals mettent en jeu des liaisons polarisées
Du coup je suis un peu perdue !

Merci de vos réponses :)
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Re: tut 4 qcm 5

Messagepar Patafelix » 07 Avr 2023, 10:09

C'est compté vrai où ?

Car c'est fauuuuux

https://quizlet.com/770270714/flashcards sur ce lien tu as un quizlet qui répondra à toutes tes questions
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Re: tut 4 qcm 5

Messagepar lison.giordanengo » 07 Avr 2023, 15:15

J'ai plus la question mais il me semble que c'est dans les annales !
Si je la trouve, je te la notifie !
En tout cas merci pour ta réponse :)
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