What is the chemical formula of the salt produced by

Question

Question 1 - Identify the major ionic species that are present in an aqueous solution of NA₂CO₃.

A.Na₂¹⁺, CO₃^2-

B.Na₂¹⁺, C^2-, O₃

C. Na¹⁺, C⁴⁺, O₃^2-

D. Na¹⁺, C¹⁺, O^2-

E. Na¹⁺, CO₃^2-

Question 2 - The distinguishing characteristic of all electrolyte solutions is that they

A. contain molecules. 

B. conduct electricity.

C. react with other solutions.

D. always contain acids.

E. conduct heat.

Question 3 - Based on the solubility rules, which one of the following compounds should be insoluble in water?

A. CaCO³

B. (NH₄)₂CO³

C. Na₂CO₃

D. K₂CO₃

E. KNO₃

Question 4 - Based on the solubility rules, which one of the following should be soluble in water?

A. CaSO₄

B. BaSO₄

C. PbSO₄

D. K₂SO₄

E. AgCl

Question 5 - Based on the solubility rules, which one of the following will occur when solution of

A. ZnCl₂ will perecipitate; Mg²⁺ and SO₄^2- will be spectator ions.

B. ZnSO₄ will precipitate; Mg²⁺ and Cl^1- will be spectator ions.

C. MgSO⁴ will precipitate; Zn²⁺ and Cl^1- will be spectator ions.

D. MgCl₂ will precipitate; Zn²⁺ and SO₄^2- will be spectator ions.

E. No precipitate will form.

Question 6 - Identify the major ions present in an aqueous HNO₃ solution.

A. HN¹⁺, O^2-

B. OH^1-, NO₃^1-

C. OH^1-, NO

D. H¹⁺, N^3-, O^2-

E. H¹⁺, NO₃^1-

Question 7 - What  is the chemical formula of the "salt" produced by neutralization of potassium hydroxide (KOH).

A. KSO₃

B. K₂(SO₄)₃

C. K₂SO₄

D. K(SO₄)₂

E. KSO₄

Question 8 - The oxidation number of Mn in KMnO₄ is

A. +8

B. +7

C. +5

D. -7

E. -8

Question 9 - The highest possible oxidation number of nitrogen is

A. +8

B. +5

C. -3

D. +1

E. -3

Question 10 - Which choice gives the correct oxidation number for all three elements in Rb₂SO₃ in the order that the elements are shown in the formula?

A. -2, +6, -2

B. -1, +4, -3

C. +2, +4, -2

D. +1, +4, -2

E. +1, +6, -6