Question

Which chemical formula represents the hydroxide ion?H+H3O+H2OOH

Answer 1

Answer:

The $OH^-$ represent the hydroxide ion.

Explanation:

The $H^+$ represent the proton or hydrogen ion.

Hydrogen atom has only one electron and 1 proton. After the removal of an electron only proton left behind due to which we $H^+$ as symbol of proton.

The $H_3O^+$ represent the hydronium ion.

When a proton gets associated with a water molecule it form postively charged ion named hydronium.

$H^++H_2O\rightarrow H_3O^+$

The $H_2O$ is the molecular formula of water with two hydrogen and one oxygen atom

The $OH^-$ represent the hydroxide ion.

The hydroxide ion is a negatively charged specie.

Answer 2

OH⁻
the hydroxide ion