A substance that produces a hydronium ion when dissolved in water is called a/an A. base. B. indicator. C. reactant. D. acid.
a compound that produces hydrogen ions when dissolved in water. Chemical Formula usually HX(X = monatomic or polyatomic ion). Chemical formula = H+
This means its acid :D
Hope I help :3
Answer : The correct answer is D acid
Aqeuous cation \(H_{3}O^{+}\)Hydronium ion.
An acid when dissolved in water produces Hydronium ion.
Therefore the substance that produces a Hydronium ion when dissolved in water is called an acid and so option D is correct.
To know more about Hydronium ion
https://brainly.com/question/1396185
#SPJ2