Using the following reaction, if 6.8 grams of hydrogen gas are reacted with excess nitrogen gas, how many moles of NH3 will be produced?
N2 + 3H2 —> 2NH3

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

Select the correct answer. wax is a nonpolar substance. in which type of substance is it the most soluble?

If you fill your car tire to a pressure of 32 psi (pounds per square inch) on a hot summer day when the temperature is 35°c (95°f), what is the pressure (in psi) on a cold winter day when the temperature is -15°c (5°f)? assume no gas leaks out between measurements and the volume of the tire does not change.