[paloscience]

We know that water can accept a proton producing h30 via dative covalent bonding, this is due to its lone pair, if I am not mistaken then has not h20 got another lone pair if so can it not accept another proton, if it can whats its name? as i know h30 is Hydronium ion. I would be grateful if someone could enlighten me. Thank you

[fledarmus]

The problem is that once you have added a proton, you now have a positively charged hydronium ion. Positive charges repel each other - the hydronium ion will try to get as far as possible from any other positive charges, both protons and other hydronium ions.

[AWK]

Bat oxonium ion H₃O⁺ can accept another molecule of water forming H₅O₂⁺ and
H₇O₃⁺

[paloscience]

Thank you for the replies, when mentioning that the hydronium Ion is now positive do not forget we still have one extra lone pair on the oxygen, surely the greater electronegativity of the oxygen will still be a much stronger force thus being attracted to another proton, I am most probably wrong in thinking this but  this question has been bugging me for some time.
You see I keep thinking of NH3 with its lone pair which is able to accept a proton thus becoming NH4 via dative covalent bonding,  can not h30 do the same?

[Proton]

Water doesn't have rabbit ears. Only one of the lone pairs is active.