Question

which of the following is a hydronium ion?
A.) H2O
B.)H3O+
C.)OH-
D.)H+

Answer 1

B) H30+ is the answer, hope that helped

Answer 2

Answer: Option (B) is the correct answer.

Explanation:

A hydronium ion is an ion that contains three hydrogen atoms and one oxygen atom. Formula of a hydronium ion is $H_{3}O^{+}$.

Whereas water is a molecular compound with chemical formula $H_{2}O^$.

Hydroxide ion has formula $OH^{-}$ and a hydrogen ion has formula $H^{+}$.

Therefore, we can conclude that out of the given options $H_{3}O^{+}$ is a hydronium ion.