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Chemistry, 22.06.2019 05:30
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?
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Chemistry, 22.06.2019 10:30
Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:
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Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?
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