a 5.0 L tank holds 13 atm of propane at 10 C. what volume of oxygen gas at 10 C and 103 kPa will be required to react with all of the propane

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

In 2002, the rare earth elements mine in mountain pass, california was closed because