Write the balanced ka and kb reactions for hso3– in water. be sure to include the physical states of each species involved in the reaction.

HSO₃⁻ is amphoteric compound (in this reactions is ion that can react both as an acid and as a base).
When HSO₃⁻ acts as acid, it gives protons to water:
HSO₃⁻(aq) + H₂O(l) ⇄SO₄²⁻(aq) + H₃O⁺(aq).
Ka = [SO₄²⁻] · [H₃O⁺] / [HSO₃⁻].
When HSO₃⁻ acts as base, it accepts protons from water:
HSO₃⁻(aq) + H₂O(l) ⇄ H₂SO₄(aq) + OH⁻(aq).
Kb = [H₂SO₄] · [OH⁻] / [HSO₃⁻].

The Ka and Kb refer to acid and base dissociation constants respectively.

The following definition of terms is very important;

The Kb refers to the base dissociation constant. It is defined as the extent to which a base is dissociated in solution. The term Ka is acid dissociation constant. It shows the extent to which an acid is dissociated in solution

Hence, the Ka and Kb refer to acid and base dissociation constants respectively. The equations are shown in the attachment

Learn more about  acid  dissociation constants: link

The answer is !

The correct answer is "atomic weight".