This is is the common name for the aqueous cation h3o+, formed when a water molecule combines with the proton from a hydrogen atom.

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Leanna Dougherty

Chemistry

7 March, 05:52

This is is the common name for the aqueous cation h3o+, formed when a water molecule combines with the proton from a hydrogen atom.

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Answers (1)

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Marcel Callahan · Answer 1

Answer is: hydronium ion.

Chemical reaction: H⁺ (aq) + H₂O (l) → H₃O⁺ (aq).

Hydronium ion is positive ion present when an Arrhenius acid, for example hydrochloric acid (HCl (aq)) is dissolved in water, hydrochloric acid in solution give up a proton (a positive hydrogen ion, H ⁺) to the surrounding water molecules (H₂O) : HCl (aq) + H⁺ (aq) → Cl⁻ (aq) + H₃O⁺ (aq).