A single bond between which two atoms would have the longest bond length? (A) SIN
(B) S-1
(C) SIF
(D) Si-CI

Facial shaving brushes are either bulb-shaped or fan-shaped. an experiment is to be conducted to determine whether the lather thickness is the same for both types of shaving brushes. in previous studies, it was determined that shaving brush size (small, medium, large) is associated with lather thickness, but shaving brush type (wolf whiskers, maggard razors, frank shaving, and so on) is not associated with lather thickness. how could the experiment best be conducted? by blocking on shaving brush size by blocking on shaving brush type by blocking on shaving brush shape by blocking on lather thickness without blocking

While aphorisms and epigrams both express a truth about life, an epigram usually has a a. humorous tone b. serious tone c. grave tone d. eclectic tone

An aptitude test measures all of the following except a. numerical ability b. abstract reasoning skills c. prior subject knowledge d. perceptual accuracy