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How does the presence of heavy metals such as lead and cadmium in soil affect plant growth, and what are the most effective methods for environmental remediation of contaminated sites with high levels of these metals?
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Feb 22
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Environmental Chemistry
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JodieBaskett
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What is the mechanism of the reaction between 2-bromo-2-methylpentane with sodium ethoxide to form 2-methyl-2-pentene? Provide the detailed step-by-step process of the reaction including the intermediates formed.
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Feb 22
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Organic Chemistry
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How does the photochemical behavior of transition metal complexes vary with changes in the ligand structure? Compare and contrast the photochemical properties of a series of transition metal complexes with different ligands.
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Feb 22
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PhotoChemistry
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What is the step-by-step mechanism for the preparation of 2,4-dichlorobenzoic acid from benzoic acid and chlorine gas? Include the balanced chemical equation for the reaction and explain the role of the catalyst in the process.
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Feb 22
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Chemical synthesis
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How does the presence of a catalyst affect the reaction mechanism of the Diels-Alder reaction between cyclopentadiene and maleic anhydride, as revealed by quantum chemical calculations?
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Feb 22
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Computational Chemistry
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What is the balanced chemical equation for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas? Show all the reactants, products, and their respective coefficients.
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Feb 22
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Chemical synthesis
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What is the mechanism of the Pinacol-Pinacolone rearrangement and what factors influence its rate?
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Feb 22
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Organic Chemistry
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How does the rate of reaction vary with respect to the orientation of reactant molecules? Provide experimental evidence to support your answer.
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Feb 22
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Chemical kinetics
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Rosaline02Y
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How does the presence of cholesterol molecules affect the surface tension of a biomembrane?
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Feb 22
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Surface Chemistry
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What is the optimum reaction conditions to prepare 2,4,6-trinitrotoluene from toluene and nitric acid in terms of temperature, concentration, and reaction time to obtain a maximum yield of the product?
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Feb 22
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Chemical synthesis
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How do the photochemical properties of quantum dots vary with changes in their size and composition?
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Feb 22
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PhotoChemistry
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What is the effect of temperature on the equilibrium constant of the reaction between hydrogen gas and iodine gas, and how does the reaction rate change as the temperature is increased or decreased?
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Feb 22
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Chemical kinetics
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DanaPittmann
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How does the presence of heavy metals in water sources affect the survival and growth of fish in aquatic environments and what are the potential risks to human health?
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Feb 22
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Environmental Chemistry
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DonnellBeckh
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What is the rate constant and mechanism for the reaction between ethylene and hydrogen at 298 K and 1 atm pressure, and how does the rate change when the temperature is increased to 373 K?
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Feb 22
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Quantum Chemistry
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BarbraTorr0
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How does the rate of the chemical reaction between hydrogen and oxygen change as the pressure is increased from 1 atm to 5 atm at a constant temperature of 25°C?
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Feb 22
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Chemical kinetics
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JaninaStroh
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What is the optimum reaction conditions (temperature and time) for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas while maintaining high yield and purity?
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Feb 22
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Chemical synthesis
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KenOlvera57
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How does the rate of a photochemical reaction change with varying intensity and wavelength of light?
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Feb 22
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Physical Chemistry
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How does the presence of a catalyst affect the rate constant of a reaction with a specific mechanism?
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Feb 22
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Chemical kinetics
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What is the optimum temperature and time required for the preparation of 2,4-dinitrophenol from phenol and nitric acid, and what is the yield of the reaction?
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Feb 22
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Chemical synthesis
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Wilbur29087
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What is the effect of increasing the pH from 3 to 5 on the equilibrium position of the reaction between acetic acid (CH3COOH) and sodium acetate (CH3COONa)?
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Feb 22
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Chemical equilibrium
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OrvalLasley3
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