Which of the following best describes scientists? A. All successful scientists are men with similar personalities.
B. The best scientists come from Europe.
C. Scientists come from a variety of backgrounds.
D. Scientists come from wealthy, well-educated families.

Draw two cyclic constitutional isomers of cis-1

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

Which of the following are sources of revenue for media companies? a. direct sales to producers b. advertising and subscriptions c. online purchase d. capital investments