Assume that an acidic solution of HnA, symbolized by a violet sphere, and an aqueous solution of OH−, symbolized by a green sphere, are allowed to mix. Boxes (a) through (c) show three potential outcomes, where the orange spheres stand in for An−, the acid's anion:
Which of the following reactions matches which box?
Reaction 1: H3AsO4 + H2O ⇌ H2AsO4− + H3O+
Reaction 2: H2S + H2O ⇌ HS− + H3O+
Reaction 3: HBr + + H2O ⇌ Br− + H3O+