Term 3 Week 3 Quiz

Which of the following compounds is most likely to be insoluble in water according to common solubility rules?

• Sodium chloride (NaCl)

• Silver chloride (AgCl)

• Potassium nitrate (KNO₃)

• Ammonium sulfate ((NH₄)₂SO₄)

What is the balanced ionic equation (including states) for the reaction between aqueous solutions of sodium sulfate and barium chloride?

• Na⁺(aq) + SO₄²⁻(aq) + Ba²⁺(aq) + 2Cl⁻(aq) → BaSO₄(s) + 2Na⁺(aq) + 2Cl⁻(aq)

• Ba²⁺(aq) + SO₄²⁻(aq) → BaSO₄(s)

• 2Na⁺(aq) + SO₄²⁻(aq) + Ba²⁺(aq) + 2Cl⁻(aq) → BaSO₄(s) + 2NaCl(aq)

• BaSO₄(aq) → Ba²⁺(aq) + SO₄²⁻(aq)

Which of the following pairs of solutions will produce a precipitate when mixed?

• NaNO₃ (aq) and KCl (aq)

• AgNO₃ (aq) and NaCl (aq)

• K₂SO₄ (aq) and NaNO₃ (aq)

• Na₂SO₄ (aq) and KNO₃ (aq)

According to the solubility rules, which of the following statements is correct?

• All nitrates are insoluble in water.

• All chlorides are soluble except those of silver, lead, and mercury(I).

• All sulphates are insoluble.

• All carbonates are soluble.

Write the net ionic equation (including states) for the reaction between aqueous solutions of lead(II) nitrate and potassium iodide.

Which of the following best describes a precipitation reaction?

• A reaction in which a gas is formed.

• A reaction in which an insoluble solid forms from two aqueous solutions.

• A reaction in which heat is absorbed.

• A reaction in which a liquid is formed from two gases.

If a solution of calcium chloride is mixed with a solution of sodium carbonate, what is the precipitate formed?

• CaCO₃(s)

• NaCl(s)

• CaCl₂(s)

• Na₂CO_3(s)

When aqueous solutions of potassium sulphate and barium nitrate are mixed, the insoluble product formed is ___.

Which of the following ions would NOT form a precipitate with chloride ions in solution?

• Ag⁺

• Pb²⁺

• Na⁺

• Hg₂²⁺

A student mixes solutions of magnesium nitrate and sodium hydroxide. What is the net ionic equation for the reaction?

• Mg²⁺(aq) + 2OH^-(aq) → Mg(OH)₂(s)

• Mg(NO₃)₂ (aq) + 2NaOH (aq) → Mg(OH)₂ (s) + 2NaNO₃ (aq)

• 2Na⁺(aq) + 2NO₃^-(aq) → 2NaNO₃(aq)

• Mg²⁺(aq) + 2NO₃^-(aq) + 2Na⁺(aq) + 2OH^-(aq) → Mg(OH)₂(s) + 2Na⁺(aq) + 2NO₃^-(aq)