Write a chemical equation for hno3(aq) showing how it is an acid or a base according to the arrhenius definition

An arrhenius acid increases the concentration of H3O+ (or H+ they're the same for the sake of acids and bases) in an aqueous solution.
HNO3(aq) (known as nitric acid) is made up of two principle particles. A nitrate ion NO3-, and a hydrogen ion H+, which is what determines that it will be an acid, due to this hydrogen ion. The equation will be:
HNO3(aq) + H2O(l) --> H3O+(aq) + NO3-(aq)
Because HNO3(aq) increases H3O+ concentration in the solution by donating its H+ ion to the water, it acts as an arrhenius acid.

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.