Question

hydroium ions are always in form H3O+​

Answer 1

Answer:

H+ ions are extremely unstable and reactive at room temperature. As a result , in any solution, when H+ is generated by a reaction , H+ instantaneously joins with adjoining water molecule (H2O) to form Hydronium ions.

In compared to H+ ions, hydronium ions

(H3O+) ions are more stable in room temperature.

Hope you will be able to understand.

Answer 2

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Hydronium ion are always in the form of H3O+ because hydrogen ion can't exist alone, but they exist after combining with water molecule.