Chemistry, 17.07.2020 23:01, jocelynbeoletto
Match the separation techniques with the correct descriptions.
1. Heating a solid until it passes directly from the solid phase into the gaseous phase.
2. Separating a liquid from an insoluble solid sediment by carefully pouring the liquid from the solid without disturbing the solid.
3. The process of vapor returning to the solid phase without a liquid phase in between.
4. Heating a mixture to vaporize a volatile liquid component to make the remaining component dry.
5. Separating a solid from a liquid using a porous material, such as paper, charcoal, or sand, as a filter.
6. Using a solvent to selectively dissolve one or more components from a solid mixture.
A. Sublimation
B. Solids that Sublime
C. Extraction
D. Decantation
E. Evaporation
F. Filtration
Answers: 2
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Match the following items. 1. high-intensity bundle of energy being emitted from some decaying nuclei gamma ray 2. particle radiating from the nucleus of some atoms beta particle 3. negative particle identical to an electron but radiating from a decaying nucleus alpha particle
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Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.
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Stage in which a typical star has completely stopped fusion
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Match the separation techniques with the correct descriptions.
1. Heating a solid until it passes d...
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