Which Scientific process is Madison demonstrating by conducting the experiment

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.

What is the morality of 2.50 l of solution that contains 1.85 mol of anhydrous sodium tetraborate?