Complete the reaction, then give the expression for the Ka for H2S in water. H2S + H2O ⇔ _______ + _______ A. [HS-1] Ka= ———————— [H2S] [H3O+1] B. [H2S] Ka= ———————— [HS-1] [H3O+1] C. [H2S] Ka= ———————— [S-2] [H3O+1]2 D. [H2S] [H3O+1] Ka= ———————— [HS-1] E. [S-2] [H3O+1]2 Ka= ————————– [H2S] F. [HS-1] [H3O+1] Ka= ————————– [H2S]