Which observation illustrates the law of conservation of mass?
a. burning 10 g of propane produces twice as much carbon dioxide as burning 5 g of propane.
b. the c: o mass ratio of one compound is exactly double that of another compound.
c. when 3 g of carbon reacts with 8 g of oxygen, 11 g of carbon dioxide is produced.
d. the c: o mass ratio of a particular compound is the same, regardless of the size or source of the sample.

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

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.