Acid / Base Review

Which two formulas represent Arrhenius acids?

• NaSCN and Na₂S₂O

• H₂C₂H₃O₂ and H₃PO₄

• CH₃COOH and CH₃CH₂OH

• KHCO₃ and KHSO₄

In the following equation: HCl (g) + H₂O (l) → H₃O⁺ (aq) + Cl⁻ (aq), H₂O is a _______.

• Brønsted-Lowry Acid

• Brønsted-Lowry Base

• Arrhenius Acid

• Arrhenius Base

According to Arrhenius, what is an acid?

• Something that corrodes metals

• Something that accepts an electron pair

• Something that produces H+ ions

• Something that donates a proton

According to Arrhenius, what is an acid?

• Something that corrodes metals

• Something that accepts an electron pair

• Something that produces H+ ions

• Something that donates a proton

Which of the following compounds is classified as a Brønsted-Lowry base, but not as an Arrhenius base?

• NaOH

• NH₃

• HCl

• NO₃^-

Given the equation: HClO₄(aq) + H₂O → H₃O⁺(aq) + ClO₄⁻(aq), what is the conjugate acid from the reaction?

• HClO₄

• H₂O

• H₃O⁺

• ClO⁻

An Arrhenius BASE...

• Creates hydronium ions (H₃O⁺) in solution

• Creates hydroxide ions (OH^-) in solution

• Donates a proton

• Accepts a proton

According to Brønsted-Lowry definitions, what is an acid?

• A proton (H+) acceptor

• A substance that dissolves in water to produce OH- ions

• A proton (H+) donor

• A substance that completely ionizes in water

Which of the following is not one of the seven strong acids assumed to dissociate 100%?

• HCl

• HBr

• HNO3

• H2CO3

Which of the following statements is correct?

• Blue litmus paper turns red when placed in a base.
• Red litmus paper turns blue when placed in a base.
• Blue litmus paper stays blue when placed in an acid.
• Red litmus paper stays red when placed in a base.