Chemistry Quiz on Net Ionic Equations

Select the balanced net ionic equation for the reaction that occurs between solutions of weak nitrous acid and sodium hydroxide.

• HNO₂ + OH⁻ → 2 H₂O + NO₂⁻

• H⁺ + OH⁻ → H₂O

• HNO₂ + KOH → H₂O + KNO₂

• HNO₂ + OH⁻ → H₂O + NO₂⁻

Select the balanced net ionic equation for the reaction that occurs between solutions of strong nitric acid and sodium hydroxide.

• HNO₃ + OH⁻ → 2 H₂O + NO₃⁻

• H⁺ + OH⁻ → H₂O

• HNO₃ + NaOH → H₂O + NaNO₃

• HNO₃ + OH⁻ → H₂O + NO₃⁻

What is/are the spectator ions when aqueous solutions of weak hydrofluoric acid and potassium hydroxide react in a double replacement reaction?

• potassium and fluoride ions

• hydrogen and hydroxide ions

• fluoride ions only

• potassium ions only

Mark an X in the box for ONLY the reactions below that represent double replacement reaction.

• Fe₂(SO₄)₃ + 3 Na₂CO₃ → 3 Na₂SO₄ + Fe₂(CO₃)₃

• 2 C₂H₆ + 15 O₂ → 12 CO₂ + 6 H₂O

• MgCO₃ → MgO + CO₂

• 2 KOH + H₂SO₄ → K₂SO₄ + 2 H₂O

• Ca + Cl₂ → CaCl₂

Write the net ionic equation only for the reaction that occurs between aqueous solutions of weak chlorous acid and barium hydroxide.

• HClO₂(aq) + Ba(OH)₂(aq) → Ba(ClO₂)₂(aq) + H₂O(l)

• HClO₂(aq) + OH⁻(aq) → ClO^2⁻(aq) + H₂O(l)

• H⁺(aq) + OH⁻(aq) → H₂O(l)

• Ba²⁺(aq) + 2OH⁻(aq) → Ba(OH)₂(s)

Select the balanced net ionic equation for the reaction that occurs between solutions of weak nitrous acid and sodium hydroxide.

• HNO₂ + OH⁻ → H₂O + NO₂⁻

• H⁺ + OH⁻ → H₂O

• HNO₂ + KOH → H₂O + KNO₂

• HNO₂ + OH⁻ → 2 H₂O + NO₃⁻

Select the balanced net ionic equation for the reaction that occurs between solutions of strong nitric acid and sodium hydroxide.

• H⁺ + OH⁻ → H₂O

• HNO₃ + OH⁻ → 2 H₂O + NO₃⁻

• HNO₃ + NaOH → H₂O + NaNO₃

• HNO₃ + OH⁻ → H₂O + NO₃⁻

What is/are the spectator ions when aqueous solutions of weak hydrofluoric acid and potassium hydroxide react in a double replacement reaction?

• potassium ions

• hydrogen and hydroxide ions

• fluoride ions

• potassium and fluoride ions

Write the balanced net ionic equation only for the reaction that occurs between aqueous solutions of strong hydrochloric acid and potassium hydroxide.

• HCl(aq) + KOH(aq) → KCl(aq) + H₂O(l)

• H+(aq) + OH-(aq) → H₂O(l)

• Cl-(aq) + K+(aq) → KCl(aq)

• H₂O(l) → H+(aq) + OH-(aq)

Write the BCE (balanced chemical equation) for the reaction between sodium hydroxide and strong sulfuric acid.

• NaOH + H₂SO₄ → Na₂SO₄ + H₂O

• 2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O

• NaOH + H₂SO₄ → NaHSO₄ + H2O

• 2NaOH + H₂SO₄ → 2NaHSO₄ + 2H₂O