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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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Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.
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The atomic number, or number, is the described as the number of in the nucleus of an chemical element.
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Chemistry, 22.06.2019 14:30
Connect the whole numbers on the periodic table to indicate what they represent?
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Combustion analysis of naphthelene, a hydrocarbon used in mothballs, produces 13.20g co2 and 1.80g h...
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