Chemistry stack
WebJan 20, 2014 · F e X 2 + ion containing metal surfaces, rust, drinking water, blood etc., but also copper and brass, give rise to a similar odor on contact with the skin. The human ability to detect this odor is probably a result of the evolutionarily developed but largely dormant ability to smell blood (“blood scent”). Web1.1 Chemistry in Context. 1.2 Phases and Classification of Matter. 1.3 Physical and Chemical Properties. 1.4 Measurements. 1.5 Measurement Uncertainty, Accuracy, and …
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WebDec 7, 2015 · The strong acids which are corrosive are highly reactive so they react with most material they come into contact with and the by products start to dissolve in the acid corroding the material. – Technetium. Dec 7, 2015 at 1:59. The reactivity of the anion towards the exposed material also plays a role in the acids potential to corrode. WebFeb 18, 2016 · Sorted by: 38. Dry ice (solid carbon dioxide) sublimes at −78 °C. Dry ice and acetone are a common cold bath for chemical reactions. The melting point of acetone is -95 °C so the bath never gets cold enough to freeze the acetone. The bubbling of the carbon dioxide gas as the dry ice sublimes keeps the cold bath well stirred.
WebMar 19, 2024 · Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations. WebAug 20, 2024 · 1. There is this research on Chinese equivalent of seasoning process called "Kitchen God's Blessing" [ 1 ]. They argue that the non-stick property of seasoning comes by iron oxide ( F e X 3 O X 4) nanoballs. If they are correct then the oil or its polymers is not exactly what is causing the non-stick property but the those nanoballs on the surface.
WebStudy general chemistry online free by downloading OpenStax's Chemistry textbook and using our accompanying online resources. OpenStax offers free college textbooks for all … WebA professor hired by OpenAI to test GPT-4 said people could use it to do "dangerous chemistry." He was one of 50 experts hired by OpenAI last year to examine the risks of …
WebThis article is cited by 24 publications. Bartosz Bondzior, Przemysław J. Dereń. The role of hypersensitive transition in Eu3+ optical probe for site symmetry determination in …
WebA professor hired by OpenAI to test GPT-4 said people could use it to do "dangerous chemistry." He was one of 50 experts hired by OpenAI last year to examine the risks of GPT-4. Their research ... nausea 7 days before periodWebAug 12, 2024 · In your desired esterification mechanism, we want to protonate the acid: (1) R − C ( = O) − O H + H X 2 S O X 4 ↽ − − ⇀ R − C ( = O + H) − O H + H S O X 4 X −. This will ease the nucleophilic attack of the alcohol onto the carboxy carbon. However, we also have other atoms that can be protonated. For example, the hydrogen ... mark albertson attorney kent waWebMar 1, 2016 · Singlet (3H) at ~2.4 ppm. Quartet (2H) at ~4.3 ppm. Doublet (2H) at ~7.2 ppm. Doublet (2H) at ~7.9 ppm. The two doublets lend to a disubstituted benzene. The IR absorption lends to a C=O. I came up with this structure: My thoughts were that the singlet owing to C H X 3 would be shifted to the left of the other C H X 3 due to the C=O. mark albert smithWeb1.1 Chemistry in Context. 1.2 Phases and Classification of Matter. 1.3 Physical and Chemical Properties. 1.4 Measurements. 1.5 Measurement Uncertainty, Accuracy, and Precision. 1.6 Mathematical Treatment of Measurement Results. Your alarm goes off and, after hitting “snooze” once or twice, you pry yourself out of bed. mark albertson russian revolution part 2WebMar 2, 2016 · 5. Yes every reaction is an equilibrium. A complete reaction is a equilibrium with high equlibrium constant. If you write the expression for equilibrium constant, you will find that high equilibrium constant implies that the conc. of the products is very high, i.e. the reaction has reached completion. Share. mark alberhasky photographyWebNov 28, 2024 · Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Use MathJax to format equations. mark albert uptown bootWebChemistry 2e is designed to meet the scope and sequence requirements of the two-semester general chemistry course. The textbook provides an important opportunity for … nausea 8 days before period