Chemistry, 14.02.2020 05:48 gbeltran2302
Chapter 05, Problem 5.14 An iron-carbon alloy initially containing 0.201 wt% C is exposed to an oxygen-rich and virtually carbon-free atmosphere at 1190°C. Under these circumstances the carbon diffuses from the alloy and reacts at the surface with the oxygen in the atmosphere; that is, the carbon concentration at the surface position is maintained essentially at 0.0 wt% C. At what position will the carbon concentration be 0.151 wt% after a 7 h treatment? The value of D at 1190°C is 7.9 × 10-10 m2/s.
Answers: 3
Chemistry, 22.06.2019 08:00
Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
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Chemistry, 23.06.2019 05:00
Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?
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Chemistry, 23.06.2019 07:00
Introduction of drugs into the gastrointestinal tract is a form of administration. a. enteral b. topical c. parenteral d. inhalation
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Chapter 05, Problem 5.14 An iron-carbon alloy initially containing 0.201 wt% C is exposed to an oxyg...
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