Graphing Glow-in-the-Dark Paint Scenario
Isaac wants to paint the ceiling of his room with a glow-in-the-dark galaxy design since
his bedroom is in the basement and has no windows. He wants the glowing effect to last
through the whole night, but he doesn't know which type of paint will glow the longest.
So, he has decided to create an experiment in order to choose the best paint for his room.
Isaac found 7 available brands of glow-in-the-dark paint at the local store. Using these
samples, he painted each paint on a different square of poster paper that were each
measured to be 1 foot x 1 foot. He placed them all in his dark room, and set up a video
camera to record how long each sample of paint glowed. He recorded the time that each
paint sample stopped glowing.
Analysis Questions
1. Determine each of the following from the scenario described above:
a. Independent variable:

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.

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.

How to draw a diagram to represent a calcium metal lattice?