Enovid is a combined oral contraceptive and the first one of its kind to be approved by the FDA. Enovid uses a combination of two steroids, specifically mestranol and norethynodrel. Answer the questions below about the structures of mestranol and norethynodrel. Which functional group contains the bond labeled A? Which functional group contains the oxygen atom labeled B? Which functional group contains the oxygen atom labeled C? Which functional group contains the oxygen atom labeled D? There are two lone pair electrons on the oxygen atom labeled B. What orbitals do these lone pair electrons reside in? There are two lone pair electrons on the oxygen atom labeled D. What orbitals do these lone pair electrons reside in? What is the electron pair geometry of the oxygen atom labeled C? What is the bond angle at the oxygen atom labeled B? Which of the following below best represents the orbital overlap of the C-C σ-bond labeled E? Which of the following below best represents the orbital overlap of the C-C π-bond labeled E?

For each pair of molecules shown below, determine which one would be the stronger acid. A or B? C or D? E or F?

Enovid is a combined oral contraceptive and the first one of its kind to be approved by the FDA. Enovid uses a combination of two steroids, specifically mestranol and norethynodrel. Answer the questions below about the structures of mestranol and norethynodrel. Which functional group contains the oxygen atom labeled A? Which functional group contains the oxygen atom labeled B? Which functional group contains the oxygen atom labeled C? Which functional group contains the bond labeled D? There are two lone pair electrons on the oxygen atom labeled B. What orbitals do these lone pair electrons reside in? There are two lone pair electrons on the oxygen atom labeled C. What orbitals do these lone pair electrons reside in? What is the electron pair geometry of the oxygen atom labeled A? What is the bond angle at the oxygen atom labeled C? Which of the following below best represents the orbital overlap of the C-C σ-bond labeled E? Which of the following below best represents the orbital overlap of the C-C π-bond labeled E?

Calculate the relative energies (in kcal/mol) of the most stable staggered conformation and the most stable eclipsed conformations of the molecule shown below viewed down the indicated bond. Report your answers to one decimal place. Relevant strain energies are provided below. most stable staggered: kcal/mol most stable eclipsed: kcal/mol

Describe how Parkinson’s disease alters the basal ganglia pathway, and how this leads to the resulting symptoms.

Which of the following combines the most readily with hemoglobin?

Which of the following is the term used to describe a correction used when a patient begins a closed-circuit, multiple-breath helium dilution at a point either above or below the actual end-expiratory level (FRC)?

How is a vital capacity measured?  

In healthy adults, what is the range of the RV/TLC ratio?

6. Which of the following authors wrote a sermon in which God is depicted as a punitive and vengeful being who is justified in condemning human souls?