If we use 1080 grams of (NH4)2SO4 and 2000 grams of Ba(NO3)2 to carry out reaction (NH4)2SO4 + Ba(NO3)2 ® 2 NH4+ (aq) + 2 NO3- (aq) + BaSO4(s) there will be 8.18 moles of (NH4)2SO4 and 7.66 moles of Ba(NO3)2 react with each other, which is not a 1:1 ratio.

At the end of the reaction, one of the reactants will be completely consumed, whereas the other reactant will have an excess amount

(1) Which reactant is the limiting reactant?

(2) Which reactant has excess amount (surplus) at the end of the reaction?

(3) How much is the excess amount?

(i need all three answers