A lab student puts salt water in a non-permeable bag, seals the bag, places it in a vat of Liquid X, and observes the bag floating on the surface. The student then repeats the same procedure with pure water (i.e., same water volume in a sealed bag). Will the bag of pure water: a. float? b. sink? c. partially float? Explain your answer in no more than 2 sentences. An aspiring bartender wants to make a layered shooter (alcoholic drink in a shot glass) using equal volumes of Kahlua coffee liqueur, Amarula cream liqueur, and whipped cream. Although these three ingredients are miscible, it is possible to achieve the layered look by carefully pouring the ingredient one after the other. In what order should the bartender pour the ingredients? Justify your answer in no more than 2 sentences.