Which of the following correctly describes sam, a biological methylating agent?
a) it contains a cl bonded to a 1° carbon.
b) it contains a methyl group bonded to a positively charged sulfur atom.
c) it contains a methyl ether.
d) it contains a methyl group bonded to an aromatic ring.
e)it contains a br bonded to a phosphorus atom.

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.