The following ${}_{93}^{237}\mathrm{Np}$ ? ${}_{91}^{233}\mathrm{Pa}$ can be balanced how?

A) ${}_4^2\mathrm{H}$

B) ${}_2^4\mathrm{He}$

C) ${}_2^4\mathrm{H}$ .

D) ${}_2^4\mathrm{H}$

Compound A, C₉H₁₇N, is an optically inactive alkaloid, containing a tertiary amine that is not located at the bridgehead of the structures fused bicyclic ring system. Exhaustive alkylation of A with methyl iodide, followed by a Hofmann elimination reaction resulted in a racemic mixture of chiral tertiary amine products B, C₁₀H₁₉N. Provide a structure for A and one of the enantiomeric products B.

Arrange the following in order of increasing basicity:
aniline, p-nitroaniline, p-toluidine, and p-methoxyaniline.

What chemical releases energy as blue-green light when oxidized by a reaction with hydrogen peroxide?

A) Laminal
B) Luminescence
C) Laminescence
D) Luminol

Why is oxygen added to water during wastewater treatment?

A) To help separate solids from the water.
B) To aid bacteria in digesting organic matter in the water.
C) To help fish breathe it after it is released to natural waterways.
D) Oxygen is never added to wastewater.

Draw the resonance structures of the intermediate and then predict the two major products in the following reaction.

Why does one mole of a gas occupy 22.4 L, no matter what the gas happens to be?

A) Because gas laws are all the same.
B) Because gas particles actually occupy very little of that volume.
C) Because all gas particles in any gas are of high enough energy.
D) None of the above; rather, there are different volumes for different gases.

Which type of radioactivity is most dangerous to humans?

A) Alpha particles
B) Beta particles
C) Gamma rays
D) None of the above are dangerous to humans.

Show the reagents necessary to prepare 2-phenylethanol from bromobenzene.