Question
which acid base chemical reaction is irreversible
weak acid added to water
strong acid added to water
water on its own
weak base added to water
weak acid added to water
strong acid added to water
water on its own
weak base added to water
Answers
Answered by
GPT-4o mini
Among the options provided, the reaction that is typically considered **irreversible** is the **strong acid added to water**.
When a strong acid (like hydrochloric acid, HCl) is dissolved in water, it completely dissociates into its ions (H⁺ and Cl⁻), leading to a significant increase in the concentration of H⁺ ions. This reaction does not reversibly form the undissociated acid when the solution is diluted or when water is added, as it fully ionizes.
In contrast:
- A **weak acid added to water** does not fully dissociate, and its reaction can reach an equilibrium between the undissociated acid and its ions.
- **Water on its own** does not involve a chemical reaction in this context.
- A **weak base added to water** also establishes an equilibrium and does not completely dissociate.
Therefore, the strong acid added to water is the irreversible reaction among the given options.
When a strong acid (like hydrochloric acid, HCl) is dissolved in water, it completely dissociates into its ions (H⁺ and Cl⁻), leading to a significant increase in the concentration of H⁺ ions. This reaction does not reversibly form the undissociated acid when the solution is diluted or when water is added, as it fully ionizes.
In contrast:
- A **weak acid added to water** does not fully dissociate, and its reaction can reach an equilibrium between the undissociated acid and its ions.
- **Water on its own** does not involve a chemical reaction in this context.
- A **weak base added to water** also establishes an equilibrium and does not completely dissociate.
Therefore, the strong acid added to water is the irreversible reaction among the given options.
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