Recent activity by EvieMerideth

1 answer 79 views

How does the size or shape of gold nanoparticles affect their catalytic activity in the oxidation of carbon monoxide?

1 answer 70 views

What is the effect of varying the size and shape of gold nanoparticles on their catalytic activity in the reduction of 4-nitrophenol, and how does this compare to other common catalysts such as silver or palladium nanoparticles?

answered Feb 24 in Materials Chemistry

1 answer 71 views

How does the size and concentration of microplastics in seawater affect the bioaccumulation of harmful chemicals in marine animals, and what are the potential consequences for human consumption of contaminated seafood?

answered Feb 24 in Environmental Chemistry

1 answer 86 views

Identify the type of inorganic compound formed by the combination of sodium and chlorine atoms. Is the resulting compound ionic, covalent, or metallic? Justify your answer with appropriate reasoning.

answered Feb 20 in Inorganic Chemistry

1 answer 82 views

What is the effect of different solvents (methanol, ethanol, and water) on the fluorescence emission of luminescent materials?

asked Feb 19 in PhotoChemistry

1 answer 88 views

How does the concentration of emulsifiers affect the stability of oil-in-water emulsions?

asked Feb 19 in Surface Chemistry

1 answer 81 views

What is the mechanism behind the competition between S<sub>N</sub>1 and S<sub>N</sub>2 reactions in nucleophilic substitution of primary alkyl halides? Provide specific examples to support your explanation.

answered Feb 18 in Organic Chemistry

1 answer 76 views

What is the activation energy of the reaction between hydrogen gas and iodine gas to form hydrogen iodide, given that the rate constant at 25°C is 1.52 × 10^-3 L^2mol^-2s^-1 and the activation energy of the reaction is 186.3 kJ/mol?

asked Feb 17 in Chemical reactions

1 answer 88 views

How does temperature affect the rate of a gas-phase reaction as determined by Monte Carlo simulations?

asked Feb 17 in Computational Chemistry

1 answer 83 views

How does the surface modification of polymers affect their hydrophilicity and adhesion properties?

answered Feb 17 in Surface Chemistry

1 answer 78 views

What is the mechanism of action of the natural product, resveratrol, and how can it be effectively utilized in the development of novel drugs for the treatment of cancer?

answered Feb 14 in Medicinal Chemistry

1 answer 88 views

What is the role of metal ions in metalloproteins such as hemoglobin, myoglobin, and cytochrome c? Specifically, explain how metal coordination affects the function and activity of metalloenzymes in biological systems.

answered Feb 13 in Coordination Chemistry

1 answer 164 views

What is the effect of changing the size and shape of a ligand on the rate of ligand substitution reactions in coordination chemistry?

answered Feb 13 in Coordination Chemistry

1 answer 83 views

What is the effect of changing the concentration of one reactant on the reaction rate of a second-order reaction? Provide numerical data to support your answer.

asked Feb 13 in Chemical kinetics

1 answer 179 views

What is the relationship between a molecule and its enantiomer in terms of chirality, and how can their properties differ? Provide an example of two enantiomers with differing properties.

answered Feb 13 in Organic Chemistry

1 answer 85 views

What is the predicted color of the inorganic compound copper sulfate (CuSO4) based on its electronic configuration and crystal field theory?

answered Feb 12 in Inorganic Chemistry

1 answer 168 views

How can the sensitivity and selectivity of polymer-based sensors be optimized for detecting specific molecules?

asked Feb 10 in Polymer Chemistry

1 answer 81 views

How can the mechanical and thermal properties of polymer-based composites be optimized for specific aerospace applications?

answered Feb 7 in Polymer Chemistry

1 answer 89 views

How can magnetic resonance spectroscopy be used to determine the purity and concentration of a sample in organic chemistry?

asked Feb 5 in Physical Chemistry

1 answer 85 views

How can environmental chemistry principles be incorporated into the curriculum of high school chemistry courses effectively, to ensure students have a better understanding of the impact of chemicals and pollutants on the environment and human health?

answered Feb 5 in Chemical education

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