Which of the following compounds is a strong electrolyte?

1.   ?    H₂O
2.   ?    N₂
3.   ?    KOH
4.   ?    C₂H₆O (ethanol)
5.   ?    CH₃COOH (acetic acid)

Which of the following is the correct net ionic equation for the reaction that occurs when solutions of Pb(NO₃)₂ and NH₄Cl are mixed?

1.   ?    Pb(NO₃)_2(aq) + 2NH₄Cl_(aq) --> NH₄NO_3(aq) + PbCl_2(s)
2.   ?    Pb²⁺ + 2Cl^- --> PbCl_2(s)
3.   ?    Pb²⁺ + 2NO₃^- + 2NH₄⁺ + 2Cl^- --> 2NH₄⁺ + 2NO₃^- + PbCl_2(s)
4.   ?    NH₄⁺ + NO₃^- --> 2NH₄NO₃

Which is the chemical formula of the salt produced by neutralization of hydrobromic acid with Mg(OH)₂?

1.   ?    MgBr
2.   ?    Mg₂Br₃
3.   ?    Mg₃Br₂
4.   ?    Mg₂Br
5.   ?    MgBr₂

The oxidation number of N in NaNO₃ is:

1.   ?    +6
2.   ?    +5
3.   ?    +3
4.   ?    -3
5.   ?    None of these

The maximum oxidation number of carbon is:

1.   ?    +8
2.   ?    +6
3.   ?    +4
4.   ?    +2
5.   ?    -4

Which choice gives the oxidation numbers for all three elements in Rb₂SO₃ correctly, and in the order shown in the formula?

1.   ?    -2, +6, -2
2.   ?    -1, +4, -3
3.   ?    +2, +4, -2
4.   ?    +1, +4, -2
5.   ?    +1, +6, -6

Which one of the following is a redox reaction?

1.   ?    H⁺_(aq) + OH^-_(aq) --> H₂O_(l)
2.   ?    2KBr_(aq) + Pb(NO₃)_2(aq) --> 2KNO_3(aq) + PbBr_2(s)
3.   ?    CaBr_2(aq) + H₂SO_4(aq) --> CaSO_4(s) + 2HBr_(g)
4.   ?    2Al_(s) + 3H₂SO_4(aq) --> Al₂(SO₄)_3(aq) + 3H_2(g)
5.   ?    CO₃^2- + HSO₄^- --> HCO₃^- + SO₄^2-

Identify the reducing agent in the following equation.
Cd + NiO₂ + 2H₂O --> Cd(OH)₂ + Ni(OH)₂

1.   ?    Cd
2.   ?    NiO₂
3.   ?    H₂O
4.   ?    Cd(OH)₂
5.   ?    Ni(OH)₂

Complete and balance the following redox reaction which occurs in acidic solution. When correctly balanced, the sum of all the coefficients in the equation will be: (Recall, the absence of a coefficient is understood to be a 1)
PbO_2(s) + Cl^- --> Pb²⁺ + Cl_2(g) (acidic solution)

1.   ?    7
2.   ?    4
3.   ?    5
4.   ?    9
5.   ?    11

Complete and balance the following redox equation. The sum of the coefficients when they are all whole numbers is:
Bi(OH)₃ + SnO₂^2- --> Bi + SnO₃^2- (basic solution)

1.   ?    32
2.   ?    25
3.   ?    13
4.   ?    16
5.   ?    None of these.

Which one of the following is an acid-base neutralization reaction?

1.   ?    2Al_(s) + 3H₂SO_4(aq) --> Al₂(SO₄)_3(aq) + 3H_2(g)
2.   ?    SO_2(g) + H₂O_(l) --> H₂SO_3(g)
3.   ?    LiOH_(aq) + HNO_3(aq) --> LiNO_3(aq) + H₂O_(l)
4.   ?    2KBr_(aq) + Cl_2(g) --> 2KCl_(aq) + Br_2(l)
5.   ?    CaBr_2(aq) + H₂SO_4(aq) --> CaSO_4(s) + 2HBr_(g)