Understanding Acids and Bases

Which model describes acids and bases based on their interaction with water to form specific ions?

• Brønsted-Lowry model

• Arrhenius model

• Lewis model

• Molecular model

In the Brønsted-Lowry model, what is the role of an acid?

• To form hydronium ions

• To form hydroxide ions

• To donate a proton

• To accept a proton

What happens to a molecule when it acts as a base in the Brønsted-Lowry model?

• It becomes negatively charged

• It gains a proton

• It loses a proton

• It becomes a cation

What is the term for the equilibrium constant that indicates how likely an acid is to donate a proton?

• Kb

• Ka

• pKa

• pH

In an acid-base reaction, what is the conjugate base of water when it donates a proton?

• Hydronium ion

• Hydroxide ion

• Ammonium ion

• Ammonia