Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation for the synthesis of cryolite.

equation:
Al2O3 (s) + NaOH (l) + HF (g) -> Na3AlF6 + H2O (g)
Al2O3(s)+NaOH(l)+HF(g)⟶Na3AlF6+H2O( g)
If 13.1 kg of Al2O3(s), 58.4 kg of NaOH(l), and 58.4 kg of HF(g) react completely, how many kilograms of cryolite will be produced?
mass of cryolite produced:
kg Na3AlF6
Which reactants will be in excess?

Al2O3

NaOH

HF
What is the total mass of the excess reactants left over after the reaction is complete?
total mass of excess reactants:
kg