Question

Hydronium ions are formed by:

• A. dissociation of water
• B. acid in water
• C. both $\left(A\right)$ and $\left(B\right)$
  
• D. none of the above

Answer 1

Answer: (C)

both $\left(A\right)$ and $\left(B\right)$

Hydronium not only forms as a result of the dissociation of water, but also forms when water is in the presence of an acid. As the acid dissociates, the $H^{+}$ ions bond with water molecules to form hydronium.