How many moles of Al are needed to produce 25.6 moles of Fe?

Ithink is a because if say increased in electronegativity

The answer for this is a

The answer is not c

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).