What Happens When Hydrochloric Acid (HCl) Dissociates in Pure Water

question 54

Multiple Choice

What happens when hydrochloric acid (HCl) dissociates in pure water?

• A) The water has a decrease of H⁺ ions.
• B) The HCl molecules float on top of the water.
• C) The HCl molecules separate into H⁺ and Cl^- ions.
• D) The concentration of OH^- ions increases.
• E) The pH of the solution increases.

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Definitions:

Cocktail Party Effect

The ability to focus one's auditory attention on a particular stimulus while filtering out a range of other stimuli, as in a noisy environment.

Spotlight Metaphor

A model that describes how attention is focused on specific aspects of the visual field, selecting certain details for processing while ignoring others.

Nature Of Attention

The aspect of cognitive processing that allows for focus on specific stimuli while ignoring others.

Shadowing Performance

The process of mimicking verbal material immediately as it is heard, a method used to explore the mechanisms of auditory attention and speech processing.