Question

what are the simplest ions of hydrogen and their reaction with water

Answer 1

hydrogen ion is created when a hydrogen atom loses or gains an electron. A lone positively charged hydrogen ion (or proton) can readily combine with other particles and therefore is only seen isolated when it is in a gaseous state or a nearly particle-free space.[1] Due to its extremely high charge density of approximately 2×1010 times that of a sodium ion, the bare hydrogen ion cannot exist freely in solution as it readily hydrates, i.e., bonds quickly.[2] The hydrogen ion is recommended by IUPAC as a general term for all ions of hydrogen and its isotopes.[3]

Answer 2

Answer: The chemical equation is given below.

Explanation:

Simplest ions of hydrogen atom is $H^+$ ion and is named as hydrogen ion only. The reaction of this ion with water gives another ion which is named as hydronium ions.

Chemical equation for the reaction of hydrogen ion with water follows:

$H^+(aq.)+H_2O(l)\rightarrow H_3O^+(aq.)$

By Stoichiometry of the reaction:

1 mole of hydrogen ion reacts with 1 mole of water to produce 1 mole of hydronium ion.

Hence, the chemical equation is given above.