Question

question 7 of 10 what is always true of a strong acid? a. it has more than one hydrogen atom. b. it has not been diluted with water. c. it does not dissociate at all in solution. d. it dissociates completely in solution.

Explanation:

A strong acid is defined as an acid that completely dissociates into its ions in an aqueous solution. For example, hydrochloric acid (HCl) dissociates completely into H⁺ and Cl⁻ ions in water. Option A is incorrect because the number of hydrogen atoms doesn't determine acid - strength. Option B is wrong as dilution doesn't define acid - strength. Option C is incorrect since weak acids do not dissociate completely, while strong acids do.

Answer:

D. It dissociates completely in solution.