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NicoJones_1B wrote:When H2O becomes H3O, where does the oxygen pick up a hydrogen? Does it take it from a nearby oxygen?
The reaction we did in class was HCl + H2O --> H3O+ + Cl-
The extra H comes from the HCl since HCl dissociates in H2O.
I think that in the cases that acids dissolve in water, the actual reason why acids lower the pH is that they easily release a hydrogen atom that is then taken by water to form a hydronium ion, lowering the pH of the solution.
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