What is an acid?
A)anything that donates hydrogen ions
B)anything that accepts hydrogen atoms
C)anything that donates hydrogen atoms
D)anything that dissolves metal
E)anything that donates hydronium ions

Question

Quizplus · Accepted Answer

An acid is defined as anything that donates hydrogen ions, also known as protons. This is the definition accepted by the majority of scientists and is part of the Brønsted-Lowry theory of acids and bases. Choice B is incorrect because accepting hydrogen atoms does not necessarily make an entity an acid; it could also be a reducing agent. Choice C is incorrect because donating hydrogen atoms is not a common feature of acids. Choice D is incorrect because dissolving metals does not require the presence of an acid, although acids can certainly dissolve some metals. Choice E is incorrect because hydronium ions are simply hydrated hydrogen ions, so this definition is essentially the same as choice A.

What Is an Acid