True or false and why is false 1   There are 2 major classes of keratins: alpha keratins (found in mammals) and beta keratins (found in feathers and scales of birds and reptiles) 2  One estimate of mobility within a crystal is the B-factor that reflects spreading or blurring of electron density   3 In NMR, the longitudinal relaxation time (T1) reflects the rate at which magnetization returns to the longitudinal axis after a pulse

Q: Write the chemical symbols for three different atoms or atomic cations with 21 electrons.

A: Write different atoms or cations having 21 electrons ?

Q: Select the product of the following reaction. 1. NABH4 H. HO, 2. H30* Но HO.

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Q: of the solution. Predict the vapor pressure of a solution created by mixing 30.0g of Na2SO4 with…

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Q: Q4/ geometrical isomerism is found in square planar and octahedral complexes but not found in…

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Q: X P MyLab & Mastering | Pears x Watch A.N.T. Farm | Disney x chem101 - Search 101 Chem n-Search…

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Q: Part A The following data show the rate constant of a reaction measured at several different…

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Q: At –90°C, K for the reaction           N2O4(g)  ↔  2NO2(g) is 4.66 × 10–8. We introduce 0.038 mol…

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Q: 1.21 х 103 М HNO3

A: Calculate the pH of each of the following solutions of strong acids.

Q: Use this condensed chemical structure to complete the table below. CH, — CH — CH, The condensed…

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Q: There is 50 mL of NaOH with a concentration of 0.5mol in a burette. 5ml of vinegar is added to 45mL…

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Q: Me carbons units of 3 or fewer Me Me Me

A: synthesis of the given product

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Q: 131.0 g of chlorine gas (Cl2) and 35.0 g of helium (He) are mixed in a container with a total…

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Q: Calculate AG at 25 "C for a reaction with AH--180 k and AS-363 J/K. Is the reaction spontaneous?…

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Q: Draw the structural formula for each of the following. 4-heptanone 3-chlorobutanal…

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Q: 2.) Draw 1 isomer of the compounds in item no. 3, and state the type of isomerism. Example:…

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Q: What are the description of the ff? Bond specificity: Group specificity: Substrate specificity:…

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Q: 14. Cr (BrO3)3 + Ta2(MnO4)5 → Cr2(MnO4)3 + Ta (BrO3)5 15. Nazs • 8 H2O + A → Na2S + 8 H2O = 16.…

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Q: 6. For each of the following transformations, provide the required reagent(s) and/or reaction…

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Q: A plot of In[A] versus time (in seconds) for a First Order Reaction has the following trendline…

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Q: Aldehydes and ketones are A. polar molecules capable of forming hydrogen bond among themselves. B.…

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Q: Suppose that the average velocity(Vms)of carbon dioxide molecules (molecular mass is equal to 44.0…

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Q: 1. If heat is observed as products were formed means that the reaction is b. endergonic d. both b…

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Q: Which substance is being oxidized in the reaction 2 Mg(s) + 2 MgO(s)? -

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Q: Question 1 - Nomenclature QUESTION 1 - Nomenclature and Drawing of Organic Molecules Nomenclature…

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Q: Chemistry iIi) What will be the pressure of SO4 gas when 189 gram of Aluminium potassium sulfate…

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Q: F

A: Name the IUPAC molecule:

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Q: Part A Below is an Arrhenius plot for the isomerization of cyclopropane to propene, showing the…

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Q: 11.С-Н15ОН + 02 — Н2О + СО2 - 12. K + 02 → K2O = 13. Тa2(MnOa)s + Al — Та + Alk(Mn04)з -

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Q: I. Consider the reaction 3NAOH(aq) + 3FECI3 → NaCI (aq) + 3Fe(OH)3 (s) volls a. What mass of…

A: Given :: Molarity of NaOH = 0.250 M, V= 250ml=0.250 L mass of Fe(OH)3 = ?

Q: In the laboratory you are given the task of separating Ca2+ and Co2+ ions in aqueous solution. For…

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Q: Assign R or S configuration for each pair of the following compounds, determine the relationship,…

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Q: Draw the structure of the pentapeptide Met-Pro-Ser-His-Ile at its pl

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Q: Predict the product of the following chemical reactions and state where the product (waste) should…

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Q: ete chemical formula fa

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Q: Calculate the pH of a buffer that is 0.225 M HC2H302 and 0.314 M NaC2H3O2. The Ka for HC2H302 is 1.8…

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Q: 110 Problem 4 IR Spectrum (CCl solution) menhsl propionate 1744 4000 3000 2000 1600 V (cm') 1200 800…

A: Molecular formula = C4H8O   * Double bond equivalence = 4+1-(8÷2) = 1 Only one double bond is…