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1
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How does the size and composition of microplastics affect their toxicity to marine life in different aquatic environments?
asked
Feb 24
in
Environmental Chemistry
0
votes
1
answer
28
views
What is the relationship between the size of a quantum dot and its electronic and optical properties, and how can this relationship be accurately calculated using quantum chemistry methods?
asked
Feb 24
in
Quantum Chemistry
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votes
1
answer
36
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What is the difference between primary, secondary, and tertiary structures of proteins? Provide an example of a protein for each structure type and explain the significance of each structure in its biological function.
asked
Feb 22
in
Organic Chemistry
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1
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29
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What is the specific mechanism and reaction conditions necessary for the preparation of 2,4-dinitrobenzoic acid from benzoic acid and nitric acid, and what intermediate products are formed during the process?
asked
Feb 22
in
Chemical synthesis
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votes
1
answer
63
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How does the photochemical behavior of a supramolecular assembly vary with changes in its structure and composition?
asked
Feb 22
in
PhotoChemistry
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votes
1
answer
28
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What is the effect of the orientation of reactant molecules on the rate of the reaction? Provide evidence from experiments and explain the underlying kinetic theory behind your observations.
asked
Feb 22
in
Chemical kinetics
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votes
1
answer
26
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What is the most efficient process for the industrial production of a food additive such as xanthan gum, which meets all necessary standards and regulations for food safety and quality?
asked
Feb 21
in
Chemical engineering
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votes
1
answer
36
views
What is the mechanism by which Chlorofluorocarbons (CFCs) break down ozone molecules in the stratosphere?
asked
Feb 20
in
Environmental Chemistry
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votes
1
answer
32
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What is the environmental impact of a new industrial project that involves the production of a chemical that is known for its toxicity to aquatic organisms? How can the project be modified to minimize its impact on the environment?
asked
Feb 20
in
Environmental Chemistry
0
votes
1
answer
30
views
What is the coordination geometry of the heme group in the active site of hemoglobin and how does it facilitate oxygen binding and release?
asked
Feb 19
in
Coordination Chemistry
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1
answer
40
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How do the chemical structures of different polymers affect their mechanical properties, and which polymer(s) would be the most suitable for use in the manufacturing of biomedical devices like heart valves or joint replacements?
asked
Feb 18
in
Materials Chemistry
0
votes
1
answer
36
views
How does the size and charge of a protein molecule affect its adsorption on a solid surface in different pH conditions?
asked
Feb 17
in
Surface Chemistry
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votes
1
answer
34
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How does the addition of certain oxides affect the optical properties of glass used in fiber optic communication systems?
asked
Feb 17
in
Materials Chemistry
0
votes
1
answer
35
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What is the boiling point of sodium chloride (NaCl) at standard atmospheric pressure (1 atm)? Show your complete calculation.
asked
Feb 14
in
Inorganic Chemistry
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votes
1
answer
35
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How does the process of protein degradation and turnover occur in cells, and what are the key molecular mechanisms involved in the breakdown and recycling of proteins?
asked
Feb 14
in
BioChemistry
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votes
1
answer
57
views
What will be the effect on the equilibrium concentration of product and reactant if we increase the temperature of the system in a reversible exothermic reaction?
asked
Feb 13
in
Chemical equilibrium
0
votes
1
answer
88
views
How does heavy metal contamination in soil affect the growth and yield of corn crops, and what are the possible remediation techniques to mitigate this impact?
asked
Feb 13
in
Environmental Chemistry
0
votes
1
answer
66
views
How can we design drugs that selectively target specific receptors in the central nervous system to treat neurological disorders such as Parkinson's Disease or Alzheimer's Disease?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
69
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How can we design a drug that will specifically target and inhibit the activity of the enzyme dihydrofolate reductase, which is responsible for the synthesis of folate necessary for DNA replication in cancer cells, without affecting healthy cells?
asked
Feb 12
in
Medicinal Chemistry
0
votes
1
answer
70
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How can the selectivity of polymer-based membranes for water treatment be improved while still maintaining high water permeability?
asked
Feb 10
in
Polymer Chemistry
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