What ion does hydrogen form in aqueous solution?

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Multiple Choice

What ion does hydrogen form in aqueous solution?

Explanation:
In aqueous solution, hydrogen donates its only electron and becomes a positively charged particle, a proton. In water that proton doesn’t stay bare for long; it quickly attaches to a water molecule to form the hydronium ion, H3O+. So the ion you’re looking for is the proton, usually represented as H+. The other possibilities don’t fit because H2 is a neutral molecule, H- would be a negatively charged hydride not typical in water, and H0 is neutral hydrogen.

In aqueous solution, hydrogen donates its only electron and becomes a positively charged particle, a proton. In water that proton doesn’t stay bare for long; it quickly attaches to a water molecule to form the hydronium ion, H3O+. So the ion you’re looking for is the proton, usually represented as H+. The other possibilities don’t fit because H2 is a neutral molecule, H- would be a negatively charged hydride not typical in water, and H0 is neutral hydrogen.

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