Unit 10 - Acids and Bases: Quizizz Game 2

Which formula can represent hydrogen ions in an aqueous solution?

• OH^-(aq)

• Hg₂²⁺(aq)

• H₃O⁺(aq)

• NH₄⁺(aq)

What is the color of bromcresol green indicator in a solution with a pH of 2.0?

• blue

• green

• red

• yellow

Given the equation representing a reversible reaction:

CH₃COOH(aq) + H₂O(l) ↔ CH₃COO^-(aq) + H₃O⁺(aq)

According to one acid-base theory, the two H+ donors in the equation are

• CH₃COOH and H₂O

• CH₃COOH and H₃O⁺

• CH₃COO^- and H₂O

• CH₃COO^- and H₃O⁺

Which substance is an Arrhenius base?

• HNO₃

• H₂SO₃

• Ca(OH)₂

• CH₃COOH

The table below shows the molar concentrations of hydronium ion, H₃O⁺, in four different solutions. Which solution has the highest pH?

• A

• B

• C

• D

Which statement describes an electrolyte?

• An electrolyte conducts an electric current as a solid and dissolves in water.

• An electrolyte conducts an electric current as a solid and does not dissolve in water.

• When an electrolyte dissolves in water, the resulting solution conducts an electric current.

• When an electrolyte dissolves in water, the resulting solution does not conduct an electric current.

Which substance is an Arrhenius acid?

• H₂

• HCl

• KCl

• NH₃

Compared to a 1.0-liter aqueous solution with a pH of 7.0, a 1.0-liter aqueous solution with a pH of 5.0 contains

• 10 times more hydronium ions

• 100 times more hydronium ions

• 10 times more hydroxide ions

• 100 times more hydroxide ions

Given the balanced equation representing a reaction:

HCl + H₂O → H₃O⁺ + Cl^–

The water molecule acts as a base because it

• donates an H⁺

• accepts an H⁺

• donates an OH^–

• accepts an OH^–

The concentration of which ion is increased when LiOH is dissolved in water?

• hydroxide ion

• hydrogen ion

• hydronium ion

• halide ion