A cell has 46 centromeres in G1. How many will be present in prophase and in anaphase?

 Two liters of fluid was taken off of a patient.  The fluid was located in the abdominal cavity and is a result of infection.  A chemical test is done and the fluid has a high amount of hydrogen in solution.  This fluid could best be described as?

Markovnikov addition of HCl to propene involves:  

Which reaction intermediate is formed when Br2/CCl4 reacts with cyclohexene?  

What is the major organic product of the following reaction?  

Which set of reagents will convert 3,3-Dimethyl-1-Butene into 3,3-Dimethyl-2-Butanol?  

An unknown compound with empirical formula C3H5 was treated with Br2/CCl4. The bromine solution went from orangish/red to clear immediately at room temperature indicating unsaturation in the molecul. Upon treatment with O3 followed by work-up with dimethylsulfide the following products were identified. From the information provided what is the most likely structure for this unknown compound.

What is the major product of the following reaction?  

What synthetic goal is achieved by subjecting an alkene to a hydroboration-oxidation sequence?

Which of the following alkenes can show geometric isomerism? 1. 2,3-dichloro-2-pentene 2. 4-chloro-3-ethyl-3-hexene 3. 3-chloro-2-methyl-2-butene 4. 3-chloro-2-methyl-1-butene