Which statement about the noble gases is most reliable? a. the chemistry of the reactions of noble gases is not very interesting. b. the noble gases are some of the most beautiful elements. c. the noble gases are in the rightmost column of the periodic table. d. the history of the discovery of noble gases is dull.

  the mississippians were considered to be  horticulturalists, which means they were

These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume