Question 1

Of the species below, only ________ is not an electrolyte. A)HCl B)Rb₂SO₄ C)Ar D)KOH E)NaCl

Accepted Answer

Ar is a noble gas and a nonreactive element, therefore it does not ionize in water and is not an electrolyte. The other choices are all compounds that will dissociate in water to form ions and conduct electricity.

Question 2

Which one of the following is a weak acid? A)HNO₃ B)HCl C)HI D)HF E)HClO₄

Accepted Answer

HF is a weak acid because it does not completely dissociate in water. This is due to the fact that the bond between hydrogen and fluorine is very strong, making it difficult for the hydrogen to dissociate. The other options are strong acids and fully ionize in water.

Question 3

Which combination will produce a precipitate? A)NH₄OH (aq)and HCl (aq) B)AgNO₃(aq)and Ca(C₂H₃O₂)₂ (aq) C)NaOH (aq)and HCl (aq) D)NaCl (aq)and HC₂H₃O₂(aq) E)NaOH (aq)and Fe(NO₃)₂(aq)

Accepted Answer

E

Question 4

Which of the following is insoluble in water at 25 °C? A)Mg₃(PO₄)₂ B)Na₂S C)(NH₄)₂CO₃ D)Ca(OH)₂ E)Ba(C₂H₃O₂)₂

Accepted Answer

MgS is a sulfide and sulfides are generally insoluble in water.

Question 5

When aqueous solutions of ________ are mixed, a precipitate forms. A)NiBr₂ and AgNO₃ B)NaI and KBr C)K₂SO₄ and CrCl₃ D)KOH and Ba(NO₃)₂ E)Li₂CO₃ and CsI

Accepted Answer

When NiBr2 and AgNO3 are mixed, a precipitation reaction occurs and forms a solid, which is Ni(NO3)2. This is because Ag+ and Br- combine to form AgBr(s), which is insoluble in water.

Question 6

Which combination will produce a precipitate? A)NaC₂H₃O₂(aq)and HCl (aq) B)NaOH (aq)and HCl (aq) C)AgNO₃(aq)and Ca(C₂H₃O₂)₂ (aq) D)KOH (aq)and Mg(NO₃)₂(aq) E)NaF (aq)and HCl (aq)

Accepted Answer

The answer of Which combination will produce a precipitate? A)NaC₂H₃O₂(aq)and...

Question 7

The net ionic equation for formation of an aqueous solution of Al(NO₃)₃ via mixing solid Al(OH)₃ and aqueous nitric acid is ________. A)Al(OH)₃ (s) + 3HNO₃(aq) → 3H₂O (l) + Al(NO₃)₃ (aq) B)Al(OH)₃ (s) + 3NO₃^- (aq) → 3OH^- (aq) + Al(NO₃)₃(aq) C)Al(OH)₃(s) + 3NO₃^-(aq) → 3OH^- (aq) + Al(NO₃)₃(s) D)Al(OH)₃(s) + 3H⁺ (aq) → 3H₂O (l) + Al³⁺ (aq) E)Al(OH)₃(s) + 3HNO₃(aq) → 3H₂O (l) + Al³⁺ (aq) + NO₃^-(aq)

Accepted Answer

The answer of The net ionic equation for formation of...

Question 8

The net ionic equation for the reaction between aqueous sulfuric acid and aqueous sodium hydroxide is ________. A)H⁺ (aq) + HSO₄^- (aq) + 2OH^-(aq) → 2H₂O (l) + SO₄^2- (aq) B)H⁺ (aq) + HSO₄^-(aq) + 2Na⁺ (aq) + 2OH^-(aq) → 2H₂O (l) + 2Na⁺ (aq) + SO₄^2-(aq) C)SO₄^2- (aq) + 2Na⁺ (aq) → 2Na⁺ (aq) + SO₄^2-(aq) D)H⁺(aq) + OH^-(aq) → H₂O( l) E)2H⁺(aq) + SO₄^2- (aq) + 2Na⁺ (aq) + 2OH^- (aq) → 2H₂O (l) + 2Na⁺ (aq) + SO₄^2- (aq)

Accepted Answer

The net ionic equation for the reaction between sulfuric acid (H2SO4) and sodium hydroxide (NaOH) involves the hydrogen ion (H+) from the acid reacting with the hydroxide ion (OH-) from the base to form water (H2O). This is represented by the equation H+ (aq) + OH- (aq) → H2O (l), which matches choice D when corrected for the formatting errors in the question. Choices involving sodium (Na+) or sulfate (SO4^2-) ions are not part of the net ionic equation because they are spectator ions and do not participate in the reaction.

Question 9

With which of the following will the ammonium ion form an insoluble salt?
A)chloride
B)sulfate
C)carbonate
D)sulfate and carbonate
E)none of the above

Accepted Answer

The answer of With which of the following will the...

Question 10

The reaction between strontium hydroxide and chloric acid produces ________.
A)a molecular compound and a weak electrolyte
B)two weak electrolytes
C)two strong electrolytes
D)a molecular compound and a strong electrolyte
E)two molecular compounds

Accepted Answer

The reaction between strontium hydroxide (a strong base) and chloric acid (a strong acid) produces strontium chlorate (a strong electrolyte) and water (a molecular compound).

Question 11

Aqueous solutions of a compound did not form precipitates with Cl^-, Br^-, I^-, SO₄^2-, CO₃^2-, PO₄^3-, OH^-, or S^2-. This highly water-soluble compound produced the foul-smelling gas H₂S when the solution was acidified. This compound is ________. A)Pb(NO₃)₂ B)(NH₄)₂S C)KBr D)Li₂CO₃ E)AgNO₃

Accepted Answer

The fact that the compound did not form precipitates with the given salts indicates that it is highly water-soluble and does not contain any common ions that would form insoluble salts with those anions. The formation of the foul-smelling gas H₂S upon acidification indicates the presence of sulfide ions in the compound. The only choice that contains sulfide ions is (NH₄)₂S, which also fits the criteria of being highly water-soluble.

Question 12

Which combination will produce a precipitate? A)Pb(NO₃)₂ (aq)and HCl (aq) B)Cu(NO₃)₂ (aq)and KC₂H₃O₂(aq) C)KOH (aq)and HNO₃ (aq) D)AgC₂H₃O₂ (aq)and HC₂H₃O₂(aq) E)NaOH (aq)and Sr(NO₃)₂ (aq)

Accepted Answer

The answer of Which combination will produce a precipitate? A)Pb(NO₃)₂ (aq)and...

Question 13

The net ionic equation for formation of an aqueous solution of NiI₂ accompanied by evolution of CO₂ gas via mixing solid NiCO₃ and aqueous hydriodic acid is ________. A)2NiCO₃ (s) + HI (aq) → 2H₂O (l) + CO₂(g) + 2Ni²⁺ (aq) B)NiCO₃(s) + I^-(aq) → 2H₂O (l) + CO₂ (g) + Ni²⁺(aq) + HI (aq) C)NiCO₃(s) + 2H⁺ (aq) → H₂O (l) + CO₂(g) + Ni²⁺(aq) D)NiCO₃(s) + 2HI (aq) → 2H₂O (l) + CO₂(g) + NiI₂(aq) E)NiCO₃(s) + 2HI (aq) → H₂O (l) + CO₂(g) + Ni²⁺ (aq) + 2I^- (aq)

Accepted Answer

The answer of The net ionic equation for formation of...

Question 14

Which one of the following is a diprotic acid?
A)nitric acid
B)chloric acid
C)phosphoric acid
D)hydrofluoric acid
E)sulfuric acid

Accepted Answer

Sulfuric acid (H2SO4) is a diprotic acid because it can donate two protons (H+ ions) per molecule in aqueous solution, unlike the other acids listed which are monoprotic.

Question 15

Aqueous potassium chloride will react with which one of the following in an exchange (metathesis)reaction?
A)calcium nitrate
B)sodium bromide
C)lead nitrate
D)barium nitrate
E)sodium chloride

Accepted Answer

Lead nitrate reacts with potassium chloride in a metathesis reaction to form lead chloride, which is insoluble in water, and potassium nitrate. This reaction is driven by the formation of the insoluble lead chloride precipitate.

Question 16

Which one of the following compounds is insoluble in water? A)K₂SO₄ B)Ca(C₂H₃O₂)₂ C)MgC₂O₄ D)ZnCl₂ E)Mn(NO₃)₂

Accepted Answer

The answer of Which one of the following compounds is...

Question 17

The balanced molecular equation for complete neutralization of H₂SO₄ by KOH in aqueous solution is ________. A)2H⁺ (aq) + 2OH^- (aq) → 2H₂O (l) B)2H⁺ (aq) + 2KOH (aq) → 2H₂O (l) + 2K⁺ (aq) C)H₂SO₄ (aq) + 2OH^-(aq) → 2H₂O (l) + SO₄^2- (aq) D)H₂SO₄(aq) + 2KOH (aq) → 2H₂O (l) + K₂SO₄(s) E)H₂SO₄(aq) + 2KOH (aq) → 2H₂O (l) + K₂SO₄(aq)

Accepted Answer

The correct answer is E because it represents the balanced chemical equation for the neutralization reaction between H₂SO₄ (a hypothetical acid) and KOH (potassium hydroxide), producing water (H₂O) and a salt (K₂SO₄) in aqueous solution.

Question 18

The net ionic equation for the reaction between aqueous nitric acid and aqueous sodium hydroxide is ________. A)H⁺(aq) + HNO₃ (aq) + 2OH^- (aq) → 2H₂O (l) + NO₃^-(aq) B)HNO₃ (aq) + NaOH (aq) → NaNO₃ (aq) + H₂O (l) C)H⁺(aq) + OH^- (aq) → H₂O (l) D)HNO₃ (aq) + OH^- (aq) → NO₃^- (aq) + H₂O (l) E)H⁺ (aq) + Na⁺ (aq)+ OH^- (aq) → H₂O (l) + Na⁺ (aq)

Accepted Answer

The net ionic equation for the reaction between nitric acid (HNO3) and sodium hydroxide (NaOH) involves the hydrogen ion (H+) from the acid reacting with the hydroxide ion (OH-) from the base to form water (H2O), which is choice C. Spectator ions like Na+ and NO3- are not included in the net ionic equation.

Question 19

Which one of the following compounds is insoluble in water? A)Na₂CO₃ B)K₂SO4 C)Fe(NO₃)₃ D)ZnS E)AgNO₃

Accepted Answer

ZnS (zinc sulfide) is insoluble in water.

Question 20

Which one of the following is a triprotic acid?
A)nitric acid
B)chloric acid
C)phosphoric acid
D)hydrofluoric acid
E)sulfuric acid

Accepted Answer

A triprotic acid is an acid that can donate three protons in water. Nitric acid, chloric acid, hydrofluoric acid, and sulfuric acid are all monoprotic or diprotic acids. Phosphoric acid, on the other hand, has three ionizable hydrogen atoms and is therefore a triprotic acid.

Quiz 4: Aqueous Reactions and Solution Stoichiometry

Of the species below, only ________ is not an electrolyte.

Which one of the following is a weak acid?

Which combination will produce a precipitate?

Which of the following is insoluble in water at 25 °C?

When aqueous solutions of ________ are mixed, a precipitate forms.

Which combination will produce a precipitate?

The net ionic equation for formation of an aqueous solution of Al(NO₃) ₃ via mixing solid Al(OH) ₃ and aqueous nitric acid is ________.

The net ionic equation for the reaction between aqueous sulfuric acid and aqueous sodium hydroxide is ________.

With which of the following will the ammonium ion form an insoluble salt?

The reaction between strontium hydroxide and chloric acid produces ________.

Aqueous solutions of a compound did not form precipitates with Cl^-, Br^-, I^-, SO₄^2-, CO₃^2-, PO₄^3-, OH^-, or S^2-. This highly water-soluble compound produced the foul-smelling gas H₂S when the solution was acidified. This compound is ________.

Which combination will produce a precipitate?

The net ionic equation for formation of an aqueous solution of NiI₂ accompanied by evolution of CO₂ gas via mixing solid NiCO₃ and aqueous hydriodic acid is ________.

Which one of the following is a diprotic acid?

Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction?

Which one of the following compounds is insoluble in water?

The balanced molecular equation for complete neutralization of H₂SO₄ by KOH in aqueous solution is ________.

The net ionic equation for the reaction between aqueous nitric acid and aqueous sodium hydroxide is ________.

Which one of the following compounds is insoluble in water?

Which one of the following is a triprotic acid?

Quiz 4: Aqueous Reactions and Solution Stoichiometry

Of the species below, only ________ is not an electrolyte.

Which one of the following is a weak acid?

Which combination will produce a precipitate?

Which of the following is insoluble in water at 25 °C?

When aqueous solutions of ________ are mixed, a precipitate forms.

Which combination will produce a precipitate?

The net ionic equation for formation of an aqueous solution of Al(NO3) 3 via mixing solid Al(OH) 3 and aqueous nitric acid is ________.

The net ionic equation for the reaction between aqueous sulfuric acid and aqueous sodium hydroxide is ________.

With which of the following will the ammonium ion form an insoluble salt?

The reaction between strontium hydroxide and chloric acid produces ________.

Aqueous solutions of a compound did not form precipitates with Cl-, Br-, I-, SO42-, CO32-, PO43-, OH-, or S2-. This highly water-soluble compound produced the foul-smelling gas H2S when the solution was acidified. This compound is ________.

Which combination will produce a precipitate?

The net ionic equation for formation of an aqueous solution of NiI2 accompanied by evolution of CO2 gas via mixing solid NiCO3 and aqueous hydriodic acid is ________.

Which one of the following is a diprotic acid?

Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction?

Which one of the following compounds is insoluble in water?

The balanced molecular equation for complete neutralization of H2SO4 by KOH in aqueous solution is ________.

The net ionic equation for the reaction between aqueous nitric acid and aqueous sodium hydroxide is ________.

Which one of the following compounds is insoluble in water?

Which one of the following is a triprotic acid?

The net ionic equation for formation of an aqueous solution of Al(NO₃) ₃ via mixing solid Al(OH) ₃ and aqueous nitric acid is ________.

Aqueous solutions of a compound did not form precipitates with Cl^-, Br^-, I^-, SO₄^2-, CO₃^2-, PO₄^3-, OH^-, or S^2-. This highly water-soluble compound produced the foul-smelling gas H₂S when the solution was acidified. This compound is ________.

The net ionic equation for formation of an aqueous solution of NiI₂ accompanied by evolution of CO₂ gas via mixing solid NiCO₃ and aqueous hydriodic acid is ________.

The balanced molecular equation for complete neutralization of H₂SO₄ by KOH in aqueous solution is ________.