Reaction data Reactants products
Fe2O3 Al Al2o3 Fe
Starting amount in reaction 3 moles 5 moles

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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).