Give the structure of the expected product formed when benzylamine reacts with each of the following reagents:

a. hydrogen bromide
b. sulfuric acid
c. acetic acid
d. acetyl chloride
e. acetic anhydride
f. acetone
g. acetone and hydrogen (nickel catalyst)
h. ethylene oxide
i. 1,2-epoxypropane
j. excess methyl iodide
k. sodium nitrite in dilute hydrochloric acid

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°