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May 4, 2022

THE SCIENCES The Evolution of the Periodic System From its origins some 200 years ago, the periodic table has become a vital tool for modern chemis

Use the checklist to write a 4-page research paper about the topic, on whether or not the periodic table needs to be updated or not.  Trouble in the periodic table | Feature | RSC Education https://www.scientificamerican.com/article/the-evolution-of-the-periodic-system/ https://cen.acs.org/physical-chemistry/periodic-table/periodic-table-icon-chemists-still/97/i1 https://www.sciencenews.org/article/periodic-table-history-chemical-elements-150-anniversary https://www.nytimes.com/2019/08/27/science/periodic-table-elements-chemistry.html PeriodictableArticlereferences4-2-1.docx PeriodicTable-2-1.docx Timetoupend-2-1.pdf PeriodicTableIconChemists-2-1.pdf Periodic table Article references Trouble in the […]
April 21, 2022

The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be prepared from the reaction between sodium metal and fluorine g

Complete your required discussion prompt: The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be prepared from the reaction between sodium metal and fluorine gas. Which properly represents the balanced chemical equation for this reaction? Na(s) + F2(g) → NaF2(s) Na(s) + F(g) → NaF(s) 7Na(s) […]
April 16, 2022

Which enzyme-catalyzed reactions are shared between the gluconeogenesis and glycolysis pathways? (Note: just provide the name of the enz

   1. Which enzyme-catalyzed reactions are shared between the gluconeogenesis and glycolysis pathways? (Note: just provide the name of the enzyme that catalyzes each of the shared reactions). 2. Why are some enzymes needed only in the gluconeogenesis pathway and not in the glycolysis pathway? 3. Which one of the […]
April 16, 2022

How many grams of solute and how many grams of solvent are contained in 450 grams of a 2.50% NaCl (aq) solution?

 How many grams of solute and how many grams of solvent are contained in 450 grams of a 2.50% NaCl (aq) solution? 
April 16, 2022

(10) 80-proof vodka contains 272.7 g of alcohol per 750 mL bottle. The density of vodka is 0.909 g/mL. What is the mass% alcohol in vodk

 (10) 80-proof vodka contains 272.7 g of alcohol per 750 mL bottle. The density of vodka is 0.909 g/mL. What is the mass% alcohol in vodka? 
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