객관식
In an introductory acid–base context, an acid spill can be neutralized most appropriately by adding which of the following?
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17. Acid and Base Equilibrium
Bases Introduction
객관식
In aqueous solution, which statement best describes a weak base?
A
A base that only partially ionizes (accepts protons) in water, establishing an equilibrium with its conjugate acid
B
A base that completely ionizes in water to produce hydroxide ions
C
A substance that donates protons to water to form hydronium ions
D
A base that is insoluble in water and therefore does not react
검증된 단계별 안내1
Understand the definition of a base in aqueous solution: a base is a substance that can accept protons (H\(\textsuperscript{+}\)) or produce hydroxide ions (OH\(\textsuperscript{-}\)) in water.
Recognize that a strong base completely ionizes in water, meaning it dissociates fully to produce hydroxide ions without establishing an equilibrium.
Identify that a weak base only partially ionizes in water, meaning it accepts protons to form its conjugate acid but does not fully dissociate, resulting in an equilibrium between the base and its conjugate acid.
Note that a substance donating protons to water to form hydronium ions is an acid, not a base, so this option does not describe a base.
Understand that a base that is insoluble in water and does not react cannot be classified as a weak base because it does not participate in proton acceptance or ionization in solution.
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