Arrhenius Bases

True or False.

A base produce hydroxide OH^- ions as the only negative ions in an aqueous solution.

• True

• False

Which substance is an Arrhenius base

• KCl

• CH₃Cl

• KOH

• CH₃OH

An Arrhenius base yields which ion as the only negative ion in an aqueous solution?

• hydride

• hydrogen

• hydronium

• hydroxide

Which ion is the only negative ion produced by an Arrhenius base in water?

• NO₃^-

• Ci^-

• OH^-

• H^-

One alternate acid-base theory states that an acid is an

• H⁺ donor

• H⁺ acceptor

• OH^- donor

• OH^- acceptor

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

• H⁺ donor

• H⁺ acceptor

• OH^- donor

• OH^- acceptor

Given the equation representing a reaction:

H₂CO₃ + NH₃ → NH₄⁺ + HCO₃^-

According to one acid-base theory, the compound NH₃ acts as a base because it

• accepts a hydrogen ion

• donates a hydrogen ion

• accepts a hydroxide ion

• donates a hydroxide ion

Given the balanced equation representing a reaction:

H₂O(ℓ) + HCl(g) → H₃O⁺(aq) + Cl^-(aq)

According to one acid-base theory, the H₂O(ℓ) molecules

• accept H⁺ ions

• accept OH^- ions

• donate H⁺ ions

• donate OH^- ions

According to one acid base theory, the water acts as

• a base because it accepts an H⁺

• a base because it donates an H⁺

• an acid because it accepts an H^-

• an acid because it donates an H^-

One acid-base theory defines a base as an

• H⁺ donor

• H⁺ acceptor

• H donor

• H acceptor