Which of the following would be expected to form hydrogen bonds with water? choose all that apply.

(a) methylamine
(b) n-methylpropanamide
(c) acetaldehyde
(d) cyclopentane
(e) none of the above

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.