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Briefly describe the main differences between isopoly acids and heteropoly acids. Give examples.
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- What are "common names" of organic molecules? How do those rules change if we substitute some of the hydrogen atoms with , for example , chlorine atoms ?Consider the acid-base reaction between iodoethane (CH3CH2I) and hydroxide (-OH). CH3CH2I + OH- --> CH3CH2OH + l- Use the table of bond energies to estimate the change in enthalpy (∆H in kJ/mol) for this reaction. Think about the bonds that are broken and that are formed. This reaction is endothermic, exothermic or energy neutral Using your calculation, what can you say about the strengths of the bonds? -The bonds before the reaction are stronger than the bonds after the reaction. -The bonds after the reaction are stronger than the bonds before the reaction. or -The bonds before and after the reaction are equivalent in strength.The chemical structure of oxamide is shown below. Highlight each atom that is in an amino group. :0::0: ? -С —N —Н H Н —N —Н
- Cream of tartar is a white powder sometimes used in baking. (It's what separates a tangy, chewy snickerdoodle from an ordinary cinnamon-coated sugar cookie. The acid in the cream of tartar gives snickerdoodles their distinctive tangy flavor, and the chew happens because cream of tartar prevents sugar in the cookie dough from crystalizing into crunchiness. Allrecipies.com) Cream of tartar (KHC4H4O6) is the conjugate base salt of tartaric acid (shown to the right). The Ka for another similar acid is 8.7×10-3. What is the standard Gibb's free energy (in kJ/mol) for the dissociation of that other acid?This class of organic compounds is unsaturated with one or more carbon-carbon triple bonds. O Alkynes O Alkenes Alkanes Arenes The first member of the aromatic hydrocarbons. C6H6 C6H8 C6H10 C6H12 The molecular formula of the compound isolated by Michael Faraday from the oily residue left by illuminating gas in London street lamps. OC6H6 OC6H8 O C6H10 OC6H1213. The correct IUPAC ame for the compound formed by the reaction be low is OH + HSQ, HC OH 74. The correct IUPAC name for the structure given be low is HC-N 75. The functional group formed by amino acids in protein is
