Answers: 2
Chemistry, 22.06.2019 09:10
How have the greenhouse gasses increased from the year 2000 to 2018
Answers: 2
Chemistry, 22.06.2019 12:00
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
Answers: 2
Chemistry, 22.06.2019 13:00
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
Part i complete and balance the following equation: no−2(aq)+al(s)→nh+4(aq)+alo−2(aq) (basic soluti...
Physics, 13.07.2021 14:40
English, 13.07.2021 14:40
English, 13.07.2021 14:40
Spanish, 13.07.2021 15:00
English, 13.07.2021 15:00
Social Studies, 13.07.2021 15:00
Health, 13.07.2021 15:00
Mathematics, 13.07.2021 15:00
Social Studies, 13.07.2021 15:00
Mathematics, 13.07.2021 15:00
Biology, 13.07.2021 15:00