Pushing Electrons
4th Edition
ISBN: 9781133951889
Author: Weeks, Daniel P.
Publisher: Cengage Learning
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Tetracycline stains teeth when binding to calcium. Can someone create a type of mechanism of action to show what is occurring when tetracycline undergoes this process? Below is the compound of tetracycline.
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- 2. In an aqueous medium, should the rate of reaction of covalent compounds be faster or slower than for ionic compounds? Explain in your own words.arrow_forwardConsider a reaction taking place in an aqueous solvent. The transition state for this reaction is capable of interacting more strongly with the aqueous solvent (through low potential energy interactions, including hydrogen-bonding) than with the reactant/ground state. Despite these strong potential energy interactions, the reaction rate is not significantly faster than the same reaction taking place in a non-polar solvent. Why? a)The transition enthalpy is unchanged by the aqueous solvent b)The transition Gibbs energy is reduced in the aqueous solvent c) The transition entropy is significantly negative in the aqueous solvated reaction d) The transition state internal energy is significantly negative in the aqueous solvated reaction d) none of the abovearrow_forwardWrite the step by step mechanism for the following reactionarrow_forward
- The conversion of oxygen gas to ozone can be catalyzed by the pollutant, nitrogen monoxide gas in the air. Suggest a possible mechanism for this reaction if nitrogen dioxide gas and oxygen free radicals are known to be formed as the intermediate compounds.arrow_forwardWhen the concentration of reactant molecules is increased, the rate of reaction increases. The best explanation is: As the reactant concentration increases, the rate constant increases. the activation energy increases. the frequency of molecular collisions increases. the order of reaction increases. the average kinetic energy of molecules increases.arrow_forward2. The following sequence of steps has been proposed for the overall reaction between H2 and Br2 to form HBr: (1) Br2(g) 2Br(g) (2) Br(g) + H2(g) HBr(g) + H(g) (3) H(g) + Br(g) HBr(g) Write the overall balanced equation and show that the overall Qc is the product of the Qe's for the individual steps.arrow_forward
- Please don't provide handwritten solution....arrow_forwardDraw the chemical structures of all predicted major products.arrow_forwardConsider the given reaction in which NC−NC− is the nucleophile and CH3CNCH3CN is the solvent. The reactant molecule has a structure with solid and dashed wedge bonds. A solid wedge () is used to show the bond that is above the plane of the paper, and a dashed wedge () is used to show the bond that is behind the plane of the paper. Draw the product of the following reaction:arrow_forward
- 7. The amino acid ornithine is converted to biologically important polyamines such as spermine. The first step of this biosynthesis involves the enzyme ornithine decarboxylase. Lysine 69 on ornithine decarboxylase (ODC) binds the cofactor pyridoxal phosphate (PLP) through an imine bond (see below). Ornithine displaces the lysine to create a new imine bond with PLP. The process is described below. Draw an arrow-pushing mechanism to describe this process R K69 K69 H2N NH2 R NH2 NH2arrow_forwardPredict the product(s) that forms and explain why it forms. NH₂ NH 1 eq. HBrarrow_forwardThe compound p-methoxybenzonitrile N-oxide, which has the formula CH3OC6H4CNO, reacts with itself to form a dimer—a molecule that consists of two p-methoxybenzonitrile N-oxide units connected to each other (CH3OC6H4CNO)2. The reaction can be represented as A + A → B or 2 A → B where A represents p-methoxybenzonitrile N-oxide and B represents the dimer, (CH3OC6H4CNO)2. For the reaction in carbon tetrachloride at 40 °C with an initial concentration of 0.011 M, these data were obtained: Determine the rate law for the reaction. Determine the rate constant. Determine the order of the reaction with respect to A.arrow_forward
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