réactivité Chimique COUR

Abdelilah Chakra

Objectis

Savoir décrire un système chimique et prévoir son évolution.

Chapitre 1 :L'équilibre chimique
Chapitre 2 : les équilibre ionique en solution
Chapitre 3 : les équilibre d'oxydo-réduction
Chapitre 4 : les equilibre de precipitation
Chapitre 5 : les équilibre de complexation

Chapitre 6 : les équilibre de complexation

Chapitre 1 : COURS N°1 COURS N°2 Résume N°1
Chapitre 2 : COURS N°1 COURS N°2 Résume N°1
Chapitre 3 : COURS N°1 COURS N°2 Résume N°1

Chapitre 4 : COURS N°1 Résume N°1
Chapitre 5 : COURS N°1 COURS N°2 Résume N°1

Chapitre 6 : COURS N°1

Résume N°1 Cours Chimie
Résume N°2 Cours Chimie cliquez ici
Résume N°4 Cours Chimie cliquez ici

Définition de BRONSTED
Parmi les différentes théories des acides et des bases, la théorie proposée par BRONSTED en 1923 est encore actuellement la plus utilisée.

Un acide : est une espèce chimique, ion ou molécule, susceptible de libérer (céder) un proton H+ . Un acide contient donc nécessairement l’élément hydrogène, mais tout composé hydrogéné n’est pas pour autant un acide :
Une base : est une espèce chimique, ion ou molécule, susceptible d’accepter (fixer) un proton H+ . Une base possède nécessairement un doublet d’électrons non-liant sur lequel l’ion H + vient se lier :

Abdelilah Chakra

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