The effect of chlorofluorocarbons (such as ccl2f2(g)) on the depletion of the ozone layer is well known. the use of substitutes, such as ch3ch2f(g), for the chlorofluorocarbons, has largely corrected the problem. calculate the volume (in l) occupied by 14.6 g of each of these compounds at stp. (a) ccl2f2(g) l (b) ch3ch2f(g) l

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

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.

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+