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How does the rate of a photochemical reaction change with temperature for a specific photochemical reaction, and what is the activation energy and pre-exponential factor for this reaction?
answered
Feb 22
in
PhotoChemistry
0
votes
33
views
How does the presence of sulfide minerals in acid mine drainage affect the pH and metal concentration of surface water in the surrounding area?
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Feb 22
in
Environmental Chemistry
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33
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How does the prediction of electronic and magnetic properties of topological materials aid in the design and development of efficient electronic devices?
answered
Feb 22
in
Quantum Chemistry
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32
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How does the choice of polymer electrolyte affect the performance and efficiency of lithium-ion batteries?
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Feb 18
in
Polymer Chemistry
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28
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What is the balanced chemical equation for the preparation of 2,4-dichlorobenzoic acid via the reaction between benzoic acid and chlorine gas under specific reaction conditions?
answered
Feb 17
in
Chemical synthesis
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votes
40
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How does sunlight affect the degradation of pollutants, such as pesticides and herbicides, in the environment and what are the chemical processes involved in photochemical degradation?
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Feb 14
in
PhotoChemistry
0
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62
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What is the identification of a compound using IR spectroscopy? Provide a specific example of how IR spectroscopy can be used to distinguish between two isomers.
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Feb 13
in
Organic Chemistry
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86
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Calculate the standard enthalpy change for the given reaction using the given data:2H2(g) + O2(g) --> 2H2O(l)Given:ΔHf°(H2O(l)) = -285.83 kJ/molΔHf°(O2(g)) = 0 kJ/molΔHf°(H2(g)) = 0 kJ/mol
answered
Feb 3
in
Chemical thermodynamics
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94
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How can an inadequate emphasis on chemical reactions and equations in the classroom affect a student's ability to comprehend more advanced chemistry topics like stoichiometry and thermodynamics?
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Jan 31
in
Chemical education
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78
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Calculate the enthalpy change for the combustion of methane (CH4) at constant pressure, given that the heat of formation for methane is -74.9 kJ/mol and the balanced chemical equation is: CH4 (g) + 2O2 (g) -> CO2 (g) + 2H2O (l) The heat of formation for CO2 is -393.5 kJ/mol and the heat of formation for H2O is -285.8 kJ/mol.
answered
Jan 23
in
Chemical reactions
0
votes
125
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According to the olfactory coding theory, how are smells represented in the brain?
answered
Jan 20
in
Psychology
0
votes
68
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Why is informed consent necessary?
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Jan 17
in
Psychology
0
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58
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Compare and contrast cognitive anthropology with traditional cognitive psychology.
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Jan 17
in
Psychology
0
votes
65
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What is the goal theory of motivation?
answered
Jan 15
in
Psychology
0
votes
66
views
Please compare top-down and bottom-up attentional control.
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Jan 15
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Psychology
0
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29
views
What is the definition of 'sensory memory'?
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Jan 13
in
Psychology
0
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67
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How can cultural and contextual factors influence the expression and perception of mental disorders?
answered
Jan 13
in
Psychology
0
votes
63
views
Winter storms develop from what, which form at high altitudes and are associated with hurricanes as well?
answered
Jan 8
in
Science
0
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57
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Which type of isomers generally have lower boiling and melting points than straight-chain isomers?
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Jan 8
in
Science
0
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47
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Which part of the body of amphibians, easily absorbs substances from the environment?
answered
Jan 8
in
Science
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