Which of the following does not characterize the curved arrow formalism?
a. The arrow shows the movement of electrons not atoms.
b. The atom at the head of the arrow is the electron pair acceptor.
c. The atom at the tail of the arrow is a Lewis acid.
d. The species containing the atom at the head of the arrow will have the smaller pKa.
e. All of these correctly describe the curved arrow formalism.
Question 2
Which of the following alkanes would have the highest boiling point?
a. heptane
b. 2-methylhexane
c. 2,3,-dimethylpentane
d. 2,2,3-trimethylbutane
e. All have the same molar mass and would have about the same boiling point.
History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar
(a) The Dmanisi cranium (right) shows similarities to early African H. erectus including the Narioko
This January 1937 photo from Sneedville, Tennessee, shows Eunice Johns, age 9, and her husband, ...
The photo shows an ultrasound image of a fetus of about 20 weeks’ gestational age.
Sign on methanol pump shows that methyl alcohol is a poison and can cause skin irritation and other ...
Events in human fertilization. The light micrograph shows a fertilized human oocyte.