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1.  ID these structures:

Identify this stage of mitosis:

Which of the methods shown is best for multi-step reactions?

Select the option that correctly shows the movement of electrons during the second of a series of two propagation steps involved in the chlorination of propane.

Select the best word or phrase that completes each sentence: (addition, allylic substitution, decreases, faster, heterolysis, homolysis, increases, saturated, inductive effects, inhibitor, initiator, ionic, less, more, paired, radical, resonance, selective, slower, unsaturated, unpaired, unselective, with, without)   A compound that prevents radical reactions from occurring is called a radical ………………………. .  Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

What would be an appropriate series of steps to synthesize 1-iodo-2-methylpropane from 2-methylpropene?

Perform a retrosynthetic analysis by working backwards two steps in the synthesis below.  Identify possible combinations of A and B that can lead to the alkyl bromide (C).      

44. Name one hormone  produced in this gland   Aldosterone     Calcitonin       Cortisone    Epinephrine      Estrogen      Glucagon        Insulin          Oxytocin     PTH      Progesterone      Testosterone   Thymopoietin    TH

44.  Name one hormone produced in this gland   Aldosterone     Calcitonin       Cortisone    Epinephrine   Estrogen      Glucagon        Insulin          Oxytocin    PTH      Progesterone      Testosterone Thymopoietin    TH

45. Identify the endocrine gland   Adrenal     Hypophysis       Ovary     Pancreas    Parathyroid       Testis Thymus    Thyroid