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(D) According to the Bronsted-Lowry theory,an acid is a proton $(H^{+})$ donor.When an acid is dissolved in water,it releases a proton $(H^{+})$.Since

Vedclass · Accepted Answer

$H_{3}O^{+}$

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(D) According to the Bronsted-Lowry theory,an acid is a proton $(H^{+})$ donor.When an acid is dissolved in water,it releases a proton $(H^{+})$.Since a proton $(H^{+})$ cannot exist independently in an aqueous solution,it immediately reacts with a water molecule $(H_{2}O)$ to form a hydronium ion $(H_{3}O^{+})$.Therefore,the acidity of an aqueous solution is due to the presence of hydronium ions $(H_{3}O^{+})$.

According to the Bronsted-Lowry acid-base theory,which ion is responsible for the acidity of an aqueous solution of an acid?

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