Asample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of hydrogen. if a second sample of chloroform is found to contain 30.0 g of carbon, what is the total mass of chloroform in the second sample?

The average atmospheric pressure on earth is approximated as a function of altitude by the relation patm = 101.325 (1 − 0.02256z)5.256, where patm is the atmospheric pressure in kpa, and z is the altitude in km with z = 0 at sea level. determine the approximate atmospheric pressures at atlanta (z = 306 m), denver (z = 1610 m), mexico city (z = 2309 m), and the top of mount everest (z = 8848 m).

Ivana walks 2km north then turns around and walks 3km south

1. when light strikes a pane of glass, it what? 2. when light strikes a translucent pane of glass 3. when light strikes a blue opaque surface only blue light is 4. when light strikes a prism it ! will give brainpower answer if answered all correctly!