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User MaryellenGra
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votes
1
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91
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How does the presence of a catalyst affect the activation energy and rate of a chemical reaction?
asked
Feb 22
in
Physical Chemistry
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votes
1
answer
76
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How do the photochemical properties of nanoparticles change in response to different light wavelengths?
asked
Feb 22
in
PhotoChemistry
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1
answer
78
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How does the cooling rate affect the crystalline structure and morphology of a polymer during its solidification process?
asked
Feb 19
in
Polymer Chemistry
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1
answer
82
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How does the binding of a histone protein affect the dynamics and stability of DNA in a nucleosome structure, and how can molecular dynamics simulations be used to better understand this interaction?
asked
Feb 17
in
Computational Chemistry
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1
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88
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How does the absorption of light affect the rate of photochemical reactions in a closed system?
asked
Feb 17
in
Physical Chemistry
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1
answer
74
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How can the use of chemical fertilizers and pesticides in sustainable agriculture be minimized to reduce their environmental impact?
asked
Feb 13
in
Environmental Chemistry
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1
answer
160
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What is the molecular structure and properties of collagen, the most abundant protein in the human body? How does its structure relate to its function in providing support and flexibility to tissues such as skin, bones, and tendons?
asked
Feb 12
in
Organic Chemistry
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1
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87
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How can the performance of polymer-based electronic materials be optimized for use in flexible and stretchable electronics?
asked
Feb 10
in
Polymer Chemistry
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1
answer
89
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How can the impact of radioactive waste disposal on the environment be minimized using chemical methods?
asked
Feb 7
in
Environmental Chemistry
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votes
1
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98
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How can the adsorption of proteins on solid surfaces be effectively controlled and manipulated to enhance the performance and effectiveness of protein-based technologies, such as biosensors and drug delivery systems?
asked
Feb 6
in
Surface Chemistry
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1
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128
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Calculate the standard molar entropy change (∆S°) at 298 K for the reaction: 2H2 (g) + O2 (g) → 2H2O (l) given that the standard molar enthalpy change (∆H°) for this reaction is -572 kJ/mol.
asked
Feb 3
in
Quantum Chemistry
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1
answer
113
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What is the dipole moment of carbon dioxide (CO2) and explain how you arrived at your answer?
asked
Jan 31
in
Chemical bonding
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1
answer
129
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What is the composition of a sample containing unknown minerals collected from a specific mining site using X-ray diffraction analysis?
asked
Jan 30
in
Analytical Chemistry
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1
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79
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A student wants to determine the rate law for the reaction between compound A and compound B. The student measures the initial rate of the reaction under different conditions and records the following data:| Experiment | [A] (M) | [B] (M) | Initial Rate (M/s) ||------------|---------|---------|-------------------|| 1 | 0.1 | 0.1 | 4.22x10^-4 || 2 | 0.2 | 0.1 | 8.44x10^-4 || 3 | 0.1 | 0.2 | 1.69x10^-3 |What is the rate law expression for this reaction in terms of the rate constant, k?
asked
Jan 22
in
Chemical kinetics
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1
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115
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When did the idea of partial correlation first arise?
asked
Jan 20
in
Psychology
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1
answer
123
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According to the James-Lange theory, when does an emotional experience occur?
asked
Jan 17
in
Psychology
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1
answer
91
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What is the impact of time on dissonance?
asked
Jan 16
in
Psychology
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1
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49
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What is the main strength of the psychodynamic perspective?
asked
Jan 16
in
Psychology
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1
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113
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According to the Theory of Planned Behaviour, what is subjective norm?
asked
Jan 16
in
Psychology
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1
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97
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What does the Gestalt theory postulate?
asked
Jan 15
in
Psychology
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