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Sagot :

[tex]Cu Cl_2 --> Cu^{++} +2 Cl^{-}[/tex]

 

[tex]Na_2 CO_3 --> 2Na^{+} +CO_3^{--}[/tex]

 

[tex]Fe (OH)_3 --> Fe^{+++} +3(OH)^{-}[/tex]

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