Dinitrogen tetroxide partially decomposes to nitrogen dioxide. A 1. 00 l flask is charged with 0. 0300 mol of n2o4. At equilibrium at 473 k, 0. 0155 mol of n2o4 remains. K is.

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

Subsidized stafford loans: a. accrue interest while the student is enrolled full-time in school. b. are paid by the government. c. are paid by your parents. d. accrue interest 10 years after graduation.

What is the leading cause if water scarcity throughout much of the world