Calculate the mass in grams of 5.14 x 1024 molecules of propylamine. The chemical formula for propylamine is C3H, N.
mass:

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy

How do limiting factors most affect population size? ostop population growthrestrict population growthincrease population sizeresult in positive impactso