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Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Which of the following is a physical property flammability heat of combustion solubility and toxicity

Where are the noble gases located in the periodic table? a. in the center b. on the left side c. in the upper right corner d. on the far right side