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User SteveAdamson
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0
votes
1
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105
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What is the mechanism for the production of bioluminescence in organisms such as fireflies and how do their photochemical properties differ from other organisms that produce light?
asked
Feb 20
in
PhotoChemistry
0
votes
1
answer
93
views
What are the mechanisms of protein-protein interactions and how do they influence the formation of protein complexes? Provide specific examples of protein-protein interactions and explain the significance of these interactions in biological processes.
asked
Feb 14
in
BioChemistry
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votes
1
answer
94
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How can the yield of a chemical reaction be optimized by manipulating the reaction conditions, such as temperature or pressure, and what are the possible impacts of such optimization on the production process and final product quality?
asked
Feb 14
in
Chemical engineering
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votes
1
answer
104
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How can the coordination chemistry of metallophthalocyanines affect their ability to act as efficient catalysts for reactions such as oxidation of organic compounds or reduction of water to produce hydrogen gas?
asked
Feb 6
in
Coordination Chemistry
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votes
1
answer
132
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Design a retrosynthesis for the synthesis of the following compound: 2-ethyl-3-methylcyclopent-2-enone using the Grignard reaction as the key step. Show all the necessary reagents and reaction conditions.
asked
Feb 4
in
Organic Chemistry
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votes
1
answer
138
views
How do chaperone proteins facilitate proper folding of newly synthesized polypeptide chains during protein synthesis? Include the role of ATP in the folding process in your answer.
asked
Feb 3
in
BioChemistry
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votes
1
answer
111
views
Calculate the enthalpy change of desorption of water from a graphite surface if the initial pressure of water is 10 torr and the final pressure is 1 torr at a constant temperature of 300 K. The surface area of the graphite is 50 cm² and the heat of adsorption of water on the surface is -40 kJ/mol.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
157
views
A student performed an experiment to synthesize aspirin using 5 grams of salicylic acid and an excess of acetic anhydride. After the reaction was completed, the student collected 4.2 grams of aspirin. What is the percent yield of this experiment?
asked
Jan 22
in
Chemical reactions
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votes
1
answer
160
views
A chemistry experiment involves burning a sample of propane gas, C3H8, and measuring the heat released. If 2.00 grams of propane is burned completely to produce CO2(g) and H2O(l), and the heat of combustion is found to be -2044 kJ/mol, what is the heat released in kJ when 2.00 grams of propane is burned?
asked
Jan 22
in
ThermoChemistry
0
votes
1
answer
80
views
According to Sternberg's triarchic theory of intelligence, what are the three components of intelligence?
asked
Jan 20
in
Psychology
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votes
1
answer
155
views
Please list some limitations of TMS studies.
asked
Jan 15
in
Psychology
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votes
1
answer
104
views
What is the role of social support in depression?
asked
Jan 14
in
Psychology
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votes
1
answer
86
views
What is the experimental method?
asked
Jan 13
in
Psychology
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votes
1
answer
112
views
What is the main idea behind the humanistic perspective?
asked
Jan 10
in
Psychology
0
votes
1
answer
162
views
Which rule is a result of trends in energies and is useful in explaining why atoms form the ions that they do?
asked
Jan 8
in
Science
0
votes
1
answer
70
views
Which organ in the body controls the amount of water loss in urine in response to maintaining homeostasis?
asked
Jan 8
in
Science
0
votes
1
answer
117
views
Which lipid is mainly responsible for narrowing arteries and causing the disease atherosclerosis?
asked
Jan 8
in
Science
0
votes
1
answer
80
views
Which are the closest living relations to land plants?
asked
Jan 8
in
Science
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votes
1
answer
99
views
What type of gas is produced by alcoholic fermentation of the glucose in corn or other plants?
asked
Jan 8
in
Science
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votes
1
answer
63
views
What is the property that determines the amount of current flow through a particular material?
asked
Jan 7
in
Science
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