When hydrogen chloride gas dissolves in water, what occurs that makes hydrogen chloride an Arrhenius acid?Multiple choice question.Its molecules dissociate to form hydroxide ions.Its molecules accept hydroxide ions.Its molecules accept hydrogen ions.Its molecules ionize to form hydrogen ions.
Question
When hydrogen chloride gas dissolves in water, what occurs that makes hydrogen chloride an Arrhenius acid?Multiple choice question.Its molecules dissociate to form hydroxide ions.Its molecules accept hydroxide ions.Its molecules accept hydrogen ions.Its molecules ionize to form hydrogen ions.
Solution
When hydrogen chloride (HCl) gas dissolves in water, it ionizes to form hydrogen ions (H+) and chloride ions (Cl-). This is because HCl is a strong acid and it dissociates completely in water. The formation of hydrogen ions is what makes HCl an Arrhenius acid. According to the Arrhenius definition, an acid is a substance that increases the concentration of hydrogen ions when dissolved in water. Therefore, the correct answer to the multiple choice question is: "Its molecules ionize to form hydrogen ions."
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