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0
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25
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How does the size and shape of graphene nanoribbons affect their electronic and optical properties compared to bulk graphene? Provide calculations to support your answer.
answered
Feb 24
in
Quantum Chemistry
0
votes
33
views
What is the difference between an aldehyde and a ketone based on their structures and physical properties? Provide two examples of each and explain how their properties differ from each other.
answered
Feb 22
in
Organic Chemistry
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votes
36
views
How does the polarity of a solvent affect the solubility of a substance? Provide specific examples of polar and nonpolar solvents and solutes, and explain the mechanism behind their solubility.
answered
Feb 22
in
Chemical bonding
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votes
36
views
How do the photochemical properties of photochromic materials such as spiropyrans and diarylethenes affect their ability to undergo photochromic reactions when exposed to light of different wavelengths?
answered
Feb 22
in
PhotoChemistry
0
votes
33
views
What are the most efficient and cost-effective methods for synthesizing lead sulfide quantum dots, and how can the size and shape of these quantum dots be precisely controlled to achieve desired photocatalytic activity?
answered
Feb 21
in
Materials Chemistry
0
votes
32
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What is the most effective polymerization method for synthesizing high-quality polystyrene from styrene monomer, and what factors need to be considered to optimize it?
answered
Feb 21
in
Chemical synthesis
0
votes
41
views
How does insulin signaling pathway work to regulate glucose metabolism in the liver cells?
answered
Feb 20
in
BioChemistry
0
votes
33
views
How does the concentration of sulfur dioxide (SO2) and nitrogen oxides (NOx) in the atmosphere impact the pH level of rainwater in specific regions, and what are the environmental consequences of fluctuating pH levels?
answered
Feb 19
in
Environmental Chemistry
0
votes
29
views
What is the bond dissociation energy of a H-H bond in H2 molecule in kJ/mol, given that the bond length of H-H is 74 pm and the energy required to dissociate the bond is 432 kJ/mol?
answered
Feb 18
in
Chemical bonding
0
votes
35
views
How do proteases play a role in protein degradation and turnover, and what are the specific mechanisms behind their actions?
answered
Feb 14
in
BioChemistry
0
votes
48
views
How can the surface modification of a biomaterial, such as a metallic implant, improve its bio-adhesion and biocompatibility with surrounding tissue?
answered
Feb 11
in
Surface Chemistry
0
votes
38
views
How can the critical temperature of a superconducting material be optimized through the manipulation of its crystal structure and composition?
answered
Feb 6
in
Materials Chemistry
0
votes
147
views
What is an appropriate protecting group for a primary alcohol in the synthesis of an ester and why?
answered
Jan 31
in
Organic Chemistry
0
votes
108
views
How can the lack of diversity in the chemistry field be addressed to promote a more inclusive and representative community, and increase creativity and innovation in scientific research?
answered
Jan 30
in
Chemical education
0
votes
93
views
What is the concentration of copper ions in a given sample of water collected from a river at a specific location using colorimetric analysis?
answered
Jan 30
in
Analytical Chemistry
0
votes
160
views
What is the concentration of a unknown copper(II) ion solution using polarography if a current of 2.5 mA is recorded at an applied potential of -0.45 V? The standard reduction potential of Cu2+ to Cu is -0.34 V.
answered
Jan 30
in
Analytical Chemistry
0
votes
100
views
When is the foot-in-the-door FITD technique most effective?
answered
Jan 20
in
Psychology
0
votes
117
views
What is the role of machine learning in AI development?
answered
Jan 20
in
Psychology
0
votes
28
views
Who authored the Australia Institute report on the mental health of Fly-in-fly-out workers?
answered
Jan 17
in
Psychology
0
votes
42
views
What is egocentrism in children?
answered
Jan 17
in
Psychology
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