Another student reports a melting range of 136°–138°C for the compound in Question 1 and mentions in her notebook that the rate of heating was about 12° per minute. NMR analysis of this student’s product does not reveal any impurities. Explain the low melting point.

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction

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.