Recent activity by AlishaGuy35

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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

1 answer 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

1 answer 35 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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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

1 answer 32 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

1 answer 30 views

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

1 answer 30 views

What are the main mechanisms of antibacterial drug resistance in gram-positive bacteria, and how can medicinal chemists develop new antibiotics to combat these mechanisms?

asked Feb 20 in Medicinal Chemistry

1 answer 39 views

How does insulin signaling pathway work to regulate glucose metabolism in the liver cells?

answered Feb 20 in BioChemistry

1 answer 30 views

What is the effect of temperature on the adsorption of gas on a solid surface? Does the adsorption increase or decrease with temperature and why? Provide experimental data and theoretical explanations to support your answer.

asked Feb 19 in Surface Chemistry

1 answer 32 views

How does the coordination environment of the metal ion in the active site of an enzyme affect its catalytic activity? Provide a specific example of a metalloenzyme and explain the role of coordination chemistry in its function.

asked Feb 19 in Coordination Chemistry

1 answer 32 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

1 answer 29 views

What is the bond order of the oxygen molecule (O2) using the molecular orbital theory, and how does it relate to the stability of the molecule?

asked Feb 18 in Physical Chemistry

1 answer 28 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

1 answer 30 views

If 2.5 moles of NaOH reacts with excess HCl, how many moles of NaCl can be produced?

asked Feb 17 in Chemical reactions

1 answer 33 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

1 answer 42 views

How can we optimize the synthesis conditions of metal-organic frameworks to achieve maximum yield and desired properties?

asked Feb 14 in Materials Chemistry

1 answer 29 views

What natural product can be extracted from a specific plant and effectively treat a particular medical condition, and what is the underlying pharmacological mechanism of this natural product?

asked Feb 14 in Medicinal Chemistry

1 answer 30 views

How does the metabolism of methionine differ from that of other amino acids?

asked Feb 13 in BioChemistry

1 answer 60 views

How have environmental regulations impacted the chemical industry's production processes and how effective have they been in protecting the environment?

asked Feb 13 in Environmental Chemistry

1 answer 44 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

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