How does the hydronium ion form. what is its formula?

Answer 1

When a protic acid is added to water, it releases a hydrogen ion (H+) (also called a proton because a hydrogen atom missing one electron is nothing but a proton!). However, H+ will not stay a free ion, and instead immediately combines with a nearby water molecule (H2O) to form the hydronium ion, H3O+. For example, when hydrochloric acid (HCl) is added to water, the following reaction occurs: HCl + H2O --> H+ + Cl- + H2O --> H3O+ + Cl- Note that the Cl- is stable by itself and does not combine with anything else. This is because it is much larger than H+ (remember, H+ is just a single proton), and that makes Cl- more stable (they both have a single charge, but because Cl- is larger, the charge density is lower and it is the charge density that matters -- the sign, + or -, makes no difference).

Answer 2

When a protic acid is added to water, it releases a hydrogen ion (H+) (also called aproton because a hydrogen atom missing one electron is nothing but a proton!). However, H+ will not stay a free ion, and instead immediately combines with a nearby water molecule (H2O) to form the hydronium ion, H3O+.

For example, when hydrochloric acid (HCl) is added to water, the following reaction occurs:

HCl + H2O --> H+ + Cl- + H2O --> H3O+ + Cl-

Note that the Cl- is stable by itself and does not combine with anything else. This is because it is much larger than H+ (remember, H+ is just a single proton), and that makes Cl- more stable (they both have a single charge, but because Cl- is larger, the charge density is lower and it is the charge density that matters -- the sign, + or -, makes no difference).

Answer 3

when a water molecule gains an hydrogen ion from another water molecule

Answer 4

from what I see it is just an acid, not 100% sure on this one

Answer 5

In short, hydronium ions are created when and extra hydrogen atom bonds with water.

Answer 6

The acid gives up a proton (H+) to a water molecule to form a hydronium ion.

Here's an example with hydrochloric acid:

HCl + H2O --> H3O+ + Cl-

Answer 7

The hydronium ion (H3O+) forms when a water molecule (H2O) accepts a proton (H+) from another water molecule. Its formula is H3O+.

Answer 8

Hydronium Ion = H3O+