The conjugate base of H2PO4- is

A 22 year old, G2P1 at 39wks gestation had a prepregnancy BMI of 27.  She has gained 17 lbs in the pregnancy.  Which of the following statements are TRUE regarding her weight gain for the pregnancy and her weight gain to date? 

The total number of sp-hybridized carbon atoms in the molecule

The product form in the following reaction is

Predict the product for the following rearrangement?

Which reactive intermediate is involved in the following reaction?

What is the name of the functional group annotated with the letter ‘D’ in the above molecule?

The following reaction produces what products

The major product ‘Y’ in the following reaction is

The highest occupied molecular orbital (HOMO) of 1,3-butadiene is