Write an equation for the acid–base reaction between ammonium ion and sulfate ion.

Question

a. why does the equillibrium favor the reactants?

This was my answer
NH3+H2O--><--(NH4)2SO4

Answer 1

NH3 is ammonia.
NH4+ is the ammonium ion.
Note that your equation has no S on the reactant side; therefore, you can't produce S on the right.
The question is sparse on details. Is this aqueous solution, gas phase reaction, or what? And what makes it an acid/base reaction?

2NH4^+(aq) + SO4^2-(aq) ==> (NH4)2SO4(aq)