Select the sketches that show aqueous solutions of a strong and weak acid.

The strong acid is that which undergoes the most amount of ionization into hydrogen ions in aqueous solution

Explanation:

Here we note that the strength of an acid is determined by the degree of ionization into hydrogen ions [H⁺] and hydoxonium ions an aqueous solution.

Therefore, the solution that has the highest proportion of hydrogen ions per each acid molecule is considered the stronger acid.