please help quickly!

Question

 if the previously shown begins with 5.6 miles of 02 and 0.98 moles of C2H6 determine the limiting reactant, the excess reactant, in the maximum number of grams of H2O that can be formed. 

 

the chemical equation for this question is

C2H6+ O2 —> H2O + CO2
which when balanced i believe is
2C2H6 + 7O2 —> 6H2O + 4CO2

Answer 1

The limiting reactant is C2H6, the excess reactant is O2, 53 grams of H2O can be formed

 

You want to convert moles of each substance to grams of H2O. Once you know which one produces the least amount of H2O, that's the limiting reactant. The other will be in excess.