On the basis of individual bond polarity and ori-
entation, determine whether each of the follow-
ing molecules would be polar or nonpolar:
a. h2o
b. 12
c. cf4
d. nhz
e. co

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

Which statement best describes the function of enzymes?