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User Lynell160113
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Answers by Lynell160113
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How does the photochemical property of luciferase enzyme found in fireflies differ from that of a protein present in bioluminescent bacteria, and what are the chemical mechanisms involved in the light emission process in each of these organisms?
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Feb 22
in
PhotoChemistry
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28
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What is the molecular geometry of a molecule of ammonia (NH3) and what are the bond angles between the nitrogen atom and each of the three hydrogen atoms?
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Feb 21
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Quantum Chemistry
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37
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How does the concentration of an emulsifying agent affect the stability of a water-in-oil emulsion?
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Feb 18
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Surface Chemistry
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27
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How does the addition of different functional groups to a polymer affect its electrical conductivity and performance in electronic devices?
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Feb 17
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Polymer Chemistry
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33
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How can we predict the catalytic activity and selectivity of a molecule using quantum chemistry calculations?
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Feb 14
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Quantum Chemistry
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55
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What is the predicted bond angle in a water molecule and how is it determined using VSEPR theory?
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Feb 13
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Chemical bonding
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51
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How can the physical and chemical properties of polymers be optimized to create a durable, lightweight and cost-effective packaging material for food and beverages?
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Feb 10
in
Polymer Chemistry
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35
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How can the mechanical and chemical properties of a polymer-based paint or coating be optimized for a specific application, such as an exterior coating for a steel bridge exposed to harsh weather conditions?
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Feb 7
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Polymer Chemistry
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37
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How can computational studies be used to predict the effects of mutations in active site residues on enzyme catalysis?
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Feb 6
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Computational Chemistry
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52
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How can electrophoresis be used to determine the purity and concentration of a protein sample?
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Jan 29
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Analytical Chemistry
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65
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Calculate the Gibbs free energy change (ΔG) for the reaction below at 298 K given the following standard Gibbs free energy of formation data: 2H2(g) + O2(g) → 2H2O(l) ΔG°f (kJ/mol): H2(g) = 0 O2(g) = 0 H2O(l) = -237.14
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Jan 23
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Chemical thermodynamics
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69
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Calculate the equilibrium constant (K) for the reaction between copper and silver ions in a galvanic cell at room temperature (25°C), given the following half-reactions and their respective reduction potentials:Cu2+ (aq) + 2e- → Cu (s) E°red = +0.34 VAg+ (aq) + e- → Ag (s) E°red = +0.80 VAlso, if the cell is constructed with a copper electrode and a silver electrode, which electrode will be the cathode and which will be the anode?
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Jan 23
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ElectroChemistry
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A student needs to calculate the standard enthalpy of formation of magnesium oxide, MgO, using Hess's Law. The student has access to the following reactions and their corresponding enthalpy changes:1. Mg(s) + 1/2O2(g) → MgO(s) ΔH = -601.8 kJ/mol2. Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) ΔH = -450.7 kJ/mol3. H2(g) + 1/2O2(g) → H2O(l) ΔH = -285.8 kJ/molWhat is the standard enthalpy of formation of MgO from its elements?
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Jan 22
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ThermoChemistry
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91
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How does the biopsychosocial model relate to biopsychology?
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Jan 20
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Psychology
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51
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According to the Information Integration Theory, what defines consciousness?
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Jan 20
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Psychology
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94
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Who can help reduce prejudice?
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Jan 17
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Psychology
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46
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According to Richard Atkinson and Richard Shiffrin's multi-store model of memory, why do we store information in different memory systems?
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Jan 17
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Psychology
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106
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Why is simplicity important in theory evaluation?
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Jan 15
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Psychology
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39
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When was the theory of signal detection theory developed?
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Jan 15
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Psychology
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46
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Why do people build dams and levees?
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Jan 8
in
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