Chemistry, 18.07.2019 06:00, Fangflora3
If the half-life of a given substance is 60 days, how long will it take for a 30-gram sample of the substance to decay until there are only 7.5 grams of the radioactive material remaining?
Answers: 1
Chemistry, 22.06.2019 07:50, mckinleesmomp6qj1e
Which of the following electromagnetic waves can create ions?
Answers: 2
Chemistry, 22.06.2019 13:00, nadikadiaz1
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.
Answers: 1
If the half-life of a given substance is 60 days, how long will it take for a 30-gram sample of the...
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