How does aluminum react with ferric oxide?

Answer 1

#Fe_2O_3 + 2Al rarr 2Fe + Al_2O_3 + Delta#

The stoichiometric equation is balanced as it must be, and it dictates 2:1 molar equivalence between aluminum and iron oxide.

#"Moles of aluminum"# #=# #(40.5*g)/(27.0*g*mol^-1)# #=# #1.5*mol#

And, clearly, given the stoichiometry, #0.75*mol# of ferric oxide are required for equivalence, i.e. #0.75*molxx159.69*g*mol^-1# #~=120*g#.

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Answer 2

Noah Aldrich

Aluminum reacts with ferric oxide (Fe2O3) to form aluminum oxide (Al2O3) and iron metal (Fe). This reaction is represented by the following equation:

2Al + Fe2O3 -> Al2O3 + 2Fe

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.