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CC 2017 QCM 8


Matt07
Go to solution Solved by Lucas2,

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  • Solution

Salut !

En fait quand tu regarde les masse des atomes, le Ruthénium à une masse inférieure aux deux composé qui l'entoure (M = 98,90594, ce qui est inférieur à 98,90813 et 98.90625). ainsi tu peux en déduire que le ruthénium ne peut pas se transformer spontanément, il est donc stable :)

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