Verified answer

Explanation:

The concentration of hydronium ions decreases when acid is diluted. Upon adding water, the H+ ions of the acid and hydroxyl ions of water react to form water molecules and the concentration of hydronium ions decreases.

I hope this answer is helpful for you..

[tex]\huge\underline\pink{Answer}[/tex]

✸How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted ???

➦ The concentration of hydronium ions decreases when acid is diluted. Upon adding water, the H+ ions of the acid and hydroxyl ions of water react to form water molecules and the concentration of hydronium ions decreases.

[tex]\small\underline\pink{sweety}[/tex]