An embalmer is preparing a body that is showing signs of decomposition, including a foul odor.  Which of the following is a primary contributor to the odor of decomposition?

Which of the following are advantages of using focus groups in program evaluation?  Select all that apply.

A local government is assessing an after-school program aimed at improving academic performance. The program has already been fully implemented, and the government is interested in understanding the long-term effects on student performance after one year of participation. Which type of evaluation would be most appropriate for this situation?

In the USGRA interscalene approach versus the classic Winnie PNS approach, the amount of local anesthetic used is:

An acceptable motor response(s) with an interscalene block using a PNS (pick two):

Consider the following balanced redox reaction: 2 MnO4− (aq)  +  3 S2−(aq)  +  4 H2O (l)  →   2 MnO2 (s)  +  3 S (s)  +  8 OH−(aq)      How many total electrons are transfered in this reaction? 

What is the pH of a buffer solution that contains 0.40 mol nitrous acid (HNO2) and 0.30 mol potassium nitrite (KNO2) in water sufficient to yield 1.0 L of solution?  Hint: The Ka of HNO2 is 4.0 x 10-4.

Which of the following statements regarding reactions rates is true?

The diagrams here represent solutions at various stages in the titration of a weak base B (such as NH3) with HCl. Which image best represents the solution in the beyond the equivalence point? 

Consider the voltaic cell diagram:  Al (s) | Al3⁺(aq) || Fe2⁺ (aq) | Fe (s) What is the standard cell potential, E°cell, (in V) for this voltaic cell? Hint: Refer to the table of standard reduction potentials provided. Half Reaction E° red (V) Ag+ (aq)  + e–  →  Ag (s)  +0.80 Fe3+ (aq)  +   e–  → Fe2+ (aq)   +0.77 Cu2+ (aq)  + 2 e–  → Cu (s)    +0.34 Sn4+ (aq) + 2 e–  → Sn2+ (aq)   +0.15 2H+ (aq) + 2 e–  →  H2 (g)  0.00 Pb2+ (aq) + 2 e –  → Pb (s)  –0.13 Sn2+ (aq)  +  2 e–  → Sn (s)  –0.14 Ni2+ (aq) + 2 e –  → Ni (s)   –0.28 Cd2+ (aq) + 2 e –  → Cd (s)   –0.40 Fe2+ (aq) + 2 e –  → Fe (s) –0.44 Cr3+ (aq) + 3 e– →  Cr (s)      –0.74 Zn2+ (aq) + 2 e –  → Zn (s)  –0.76 Al3+ (aq) + 3 e– →  Al (s) –1.66