Aliquid feed stream containing 40 mole perercent benzene, 35 mole percent toluene and 25 mole percent o-xylene is flashed to 120°c and 760 mm hg (14.7psia). hw#2 determine the flow rates and compositions of the vapor and liquid streams after the flash for 100 kg-mole/hr of feed. the vle relationships can be assumed to be ideal. i. e the system obeys raoult's law. c 5004 n nentane and 30% n-

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.