9-01: Properties of Acids & Bases

Which compound is an Arrhenius base?

• HCl

• H₃PO₄

• Ca(OH)₂

• CH₃COOH

Which substance is an Arrhenius acid?

• H₂

• HCl

• KCl

• NH₃

According to one acid-base theory, a molecule acts as an acid when the molecule

• accepts an H⁺

• accepts and OH⁻

• donates an H⁺

• donates and OH⁻

Which substance is an Arrhenius acid?

• HBr

• NaBr

• NaOH

• NH₃

Which pair of compounds represents one Arrhenius acid and one Arrhenius base?

• CH₃OH and NaOH

• CH₃OH and HCl

• HNO₃ and NaOH

• HNO₃ and HCl

Which type of substance yields hydrogen ions, H⁺, in an aqueous solution?

• an Arrhenius acid

• an Arrhenius base

• a saturated hydrocarbon

• an unsaturated hydrocarbon

Based on the Arrhenius theory, when potassium hydroxide dissolves in water, the only negative ion in the aqueous solution is

• O²⁻ (aq)

• OH²⁻ (aq)

• H⁻ (aq)

• OH⁻ (aq)

What can be explained by the Arrhenius theory?

• the behavior of many acids and bases

• the effect of stress on a phase equilibrium

• the operation of an electrochemical cell

• the spontaneous decay of some nuclei

Which compounds are classified as Arrhenius acids?

• HCl and NaOH

• HNO₃ and NaCl

• NH₃ and H₂CO₃

• HBr and H₂SO₄

Which compound yields H⁺ ions as the only positive ions in an aqueous solution?

• KOH

• NaOH

• CH₃OH

• CH₃COOH