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Hydrogen ion which is produced by acid (when acid is combined with water molecule), exists in the form of hydronium ion (H3O ) in aqueous solution. That's why hydrogen ion is always written with suffix (aq), such as H+ (aq). Thus, because of dissociation of hydrogen ions; acid shows its acidic behavior.
Added 7/6/2020 8:44:13 AM
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Hydrogen ions(H+) are responsible for acidic behaviour.
Added 6/18/2021 5:44:59 AM
This answer has been confirmed as correct and helpful.
Confirmed by
olldwalet [2/28/2026 4:28:14 PM]