Respuesta :

Willchemistry
 2 Fe + 3 Cl₂ =  2 FeCl₃ 

2 moles Fe ---------- 3 moles Cl₂ 
1.0 mol Fe ----------- ( moles Cl₂ )

moles Cl₂ = 1.0 x 3 / 2

moles Cl₂ = 3 / 2

= 1.5 moles of Cl₂

hope this helps!
oopsydaisy
When 1.0 mol of Fe reacts with CI2 forming FeCI3, 1.5 mol CI2 are required to react with all of the iron.

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