The Acid Ionization Equilibrium Constant, K_a, Describes the Reaction (Where

question 46

Multiple Choice

The acid ionization equilibrium constant, K_a, describes the reaction (where HA is a generic weak acid) :

• A) HA + OH^- H₂O + A^-
• B) HA + H₂O H₃O⁺ + A^-
• C) HA + H₃O⁺ H₂A⁺ + H₂O
• D) HA + H₂A⁺ H₂A⁺ + HA
• E) H₃O⁺ + A^- HA + H₂O

---

Definitions:

Living Things

Organisms that display the characteristics of life, including growth, reproduction, and the ability to respond to their environment.

Pollution

The contamination of the natural environment, causing adverse effects on living beings and ecosystems.

Negative Externality

A cost imposed on third parties not involved in a transaction or activity, such as pollution from a factory affecting nearby residents’ health.

Second-Hand Smoke

The smoke inhaled involuntarily from tobacco being smoked by others, posing health risks to non-smokers.