Why Hydrogen Water Isn't Considered H₃O or H₄O

Hydrogen water simply refers to regular water (H₂O) infused with molecular hydrogen gas (H₂). The key point is that you're not changing the chemical structure of water itself—you're just dissolving additional H₂ gas into it, similar to how carbonation adds CO₂ to soda.

Now, here’s why it’s not H₃O or H₄O:

🚫 H₃O⁺ (Hydronium)

• This is a real ion, but it forms under acidic conditions when a hydrogen ion (H⁺) attaches to a water molecule.

• It’s common in chemistry but not what hydrogen water is. Hydrogen water is neutral, not acidic.

• So hydrogen water ≠ acidic water ≠ H₃O⁺.

🚫 H₄O (Not a Stable Molecule)

• H₄O isn’t a stable or recognized molecule under normal conditions.

• There’s no such thing as H₄O in practical chemistry—it doesn’t exist in liquid water or hydrogen-infused water.

✅ Hydrogen Water = H₂O + Dissolved H₂ Gas

• The structure of the water remains H₂O.

• You're just adding extra hydrogen gas (H₂), which dissolves in the water but doesn't chemically bond to form a new molecule like H₃O or H₄O.

So, hydrogen water is still chemically H₂O, with molecular hydrogen (H₂) physically dissolved in it—not forming new compounds like H₃O or H₄O.