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What is the effect of temperature on the rate of the reaction between hydrochloric acid and sodium thiosulfate? Provide experimental evidence for your answer.

asked Feb 20 in Chemical kinetics by BlondellHock (1.9k points)

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1 answer 80 views

What are the key regulatory enzymes involved in the glycolysis pathway and how do they control the flux of glucose metabolism in the body?

asked Feb 20 in BioChemistry by PercyBanning (1.6k points)

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What is the formal charge on the nitrogen atom in the compound NH4+?

asked Feb 20 in Chemical bonding by AnnetteYbc3 (1.6k points)

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What is the electronegativity difference between the hydrogen and chlorine atoms in an HCl molecule, and what type of bond do they form?

asked Feb 20 in Chemical bonding by EttaKee54894 (2.1k points)

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1 answer 79 views

What is the mechanism of the Hofmann degradation reaction for primary amides, and how does it differ from the mechanism of Gabriele reaction?

asked Feb 20 in Organic Chemistry by MoniqueBrins (1.9k points)

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What is the electronegativity difference between a nitrogen atom and a chlorine atom in the molecule HCl?

asked Feb 20 in Chemical bonding by HiramFarrell (1.7k points)

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Identify the mechanism and the major product formed in the following reaction: CH3CH2Br + OH- → CH3CH2OH + Br- Also, determine whether it undergoes an SN1, SN2, E1, or E2 mechanism and provide a detailed explanation for your choice.

asked Feb 20 in Organic Chemistry by RoyalShu7550 (1.9k points)

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1 answer 94 views

What is the effect of pressure on the rate of the reaction between hydrogen gas and iodine gas to form hydrogen iodide gas, and how does this effect support or contradict the collision theory of chemical reactions?

asked Feb 19 in Chemical kinetics by DanielleVanw (2.3k points)

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1 answer 83 views

How does the excitation wavelength affect the emission intensity and lifetime of a commonly used fluorescent dye such as fluorescein?

asked Feb 20 in PhotoChemistry by OrenTherrien (1.8k points)

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How does the geometry of zeolites affect their catalytic activity in the conversion of methanol to olefins? Use computational methods to investigate different zeolite structures and predict their catalytic performances.

asked Feb 20 in Computational Chemistry by Dylan31U6281 (2.0k points)

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In the coordination chemistry of transition metals, what is the effect of the geometry of the ligand coordination sphere on the magnetic properties of transition metal complexes? Provide examples to illustrate your answer.

asked Feb 20 in Coordination Chemistry by SoniaFanny4 (2.3k points)

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1 answer 87 views

How do changes in the number of layers and presence of defects affect the electronic and optical properties of graphene and other 2D materials, with a focus on the band gap and excitonic effects?

asked Feb 20 in Quantum Chemistry by YRPAbe659621 (2.3k points)

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What is the enthalpy of formation of water (H2O) from its elements hydrogen and oxygen at standard conditions (25°C and 1 atm)?

asked Feb 20 in ThermoChemistry by Shelia708886 (2.1k points)

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What is the effect of temperature on solubility of solid solutes in aqueous solutions? Provide an example with experimental data.

asked Feb 20 in Physical Chemistry by CarmellaBibl (2.0k points)

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What is the enthalpy change (in kJ/mol) for the combustion of propane (C3H8) using Hess's Law? Use the following information: C3H8 + 5O2 → 3CO2 + 4H2O ∆H = −2043 kJ/mol 2CO + O2 → 2CO2 ∆H = −566 kJ/mol H2 + 1/2O2 → H2O ∆H = −285.8 kJ/mol

asked Feb 20 in ThermoChemistry by EffieQkd6688 (1.7k points)

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1 answer 71 views

How does the hormonal regulation and signaling system work in the human body to maintain blood glucose levels? Provide a molecular-level explanation of the role of insulin and glucagon in this process.

asked Feb 20 in BioChemistry by JackH2065356 (1.1k points)

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1 answer 93 views

What is the effect of surface area on the adsorption of nitrogen gas on activated carbon?

asked Feb 19 in Surface Chemistry by VanBohannon (1.7k points)

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What temperature, pressure, and chemical conditions are required for the Haber process to produce ammonia at an optimum rate for fertilizer production, given a certain amount of reactants?

asked Feb 20 in Chemical engineering by YvonneRausch (2.0k points)

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1 answer 84 views

What is the amount of energy required to break the single C-H bond in the methane (CH4) molecule? Provide the answer in units of kilojoules per mole (kJ/mol).

asked Feb 20 in Chemical reactions by StefanHartin (1.7k points)

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How does the electronic structure influence the adsorption behavior of molecules on metal surfaces and what are the implications for catalytic activity in industrial processes, based on density functional theory calculations of surface properties?

asked Feb 20 in Computational Chemistry by AWSReginald (2.2k points)

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