Reference no: EM131876770
Question 1 - Identify the major ionic species that are present in an aqueous solution of NA2CO3.
A.Na21+, CO32-
B.Na21+, C2-, O3
C. Na1+, C4+, O32-
D. Na1+, C1+, O2-
E. Na1+, CO32-
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 SO42- will be spectator ions.
B. ZnSO4 will precipitate; Mg2+ and Cl1- will be spectator ions.
C. MgSO4 will precipitate; Zn2+ and Cl1- will be spectator ions.
D. MgCl2 will precipitate; Zn2+ and SO42- will be spectator ions.
E. No precipitate will form.
Question 6 - Identify the major ions present in an aqueous HNO3 solution.
A. HN1+, O2-
B. OH1-, NO31-
C. OH1-, NO
D. H1+, N3-, O2-
E. H1+, NO31-
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