Which of the following describes something an engineer would probably do
first when developing new technology meant to reduce ocean pollution?
• A. Evaluate
the benefits and challenges of using certain chemicals to
purify water.
•
B. Identify thè need to reduce ocean pollution.
• C. Research what has been done in the
residue.
past to clean
up oceanic oil
D. Research new
scientifis findings in regard to ocean cleanup.

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

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.

How do dying stars contribute to the formation of planets