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Bronsted-Lowry - Coggle Diagram

- - - - Lone pair contributes
        
        pKa decrease as (-) charge of CB stabilized by resonance
      - Different electronegativity atom in conjugated system reduce stability as distribution of electron is uneven hence increase pKa
      - More resonance structures = increased delocalization of (-) charge in CB
    - - Withdrawing
        
        pKa decrease as negative charge stabilized
      - Donating
        
        pKa decrease as negative charge destabilized
  - - - ion-dipole, increase charge density = more polarized M--O-H2, pKa decrease
    - - Coordinate bond, pKa lower than s-block as CB more stabilized since negative charge delocalized across sigma bond
      - Higher charge outweighs effect of increased polarizability
      - Down group, n increases, electron shell more polarizable and big, CB more stable as negative charge can be more delocalized