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On melange 3g de zinc et 7g de fer dans un bocal contenant la quantité d'acide chlorydrique nécessaire pour une reaction compléte
a) Existe t-il plusieurs ou une equation de reaction ?
b) calcule le nombre total de litres de dihydrogène formé
M( Fe)=56g/mol; M(Zn)=65g/mol; V0=22,4g/mol

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