Recent activity by ArnulfoHelly

1 answer 16 views

What is the effect of changes in the concentration of the reactants on the rate of the reaction and the resulting profitability, using the example of the reaction between hydrochloric acid and magnesium?

answered 3 days ago in Chemical kinetics

1 answer 17 views

What is the rate law expression for the reaction A + 2B → C, if the reaction is second order with respect to A and first order with respect to B? Also, write down the overall order of the reaction.

answered 3 days ago in Physical Chemistry

1 answer 26 views

What is the molecular geometry of the carbon dioxide molecule?

asked 4 days ago in Chemical bonding

1 answer 19 views

What is the mechanism of the hydrogenation of ethyne to ethane using a palladium catalyst?

asked 5 days ago in Organic Chemistry

1 answer 28 views

What is the electronegativity difference between a potassium atom (electronegativity value of 0.82) and a chlorine atom (electronegativity value of 3.16)?

asked 5 days ago in Chemical bonding

1 answer 16 views

How does the coordination geometry of metal ions affect the electronic and magnetic properties of metal-organic frameworks, and what is the relationship between the metal ion's oxidation state and these properties?

answered 6 days ago in Quantum Chemistry

1 answer 26 views

How does the concentration of heavy metals in soil affect the growth and biomass of plants in the environment?

asked 6 days ago in Environmental Chemistry

1 answer 34 views

How does the concentration of a reactant affect the rate of a chemical reaction, and can this relationship be quantified through experimentation?

asked 6 days ago in Chemical kinetics

1 answer 40 views

What factors can be used to predict the color of inorganic compounds and how do these factors relate to the electronic structure of the compound?

answered 6 days ago in Inorganic Chemistry

1 answer 19 views

What is the bond enthalpy of the carbon-hydrogen (C-H) bond in methane (CH4) ?

asked Feb 18 in Chemical bonding

1 answer 37 views

What specific factors affect the photochemical properties of nanoparticles, and how can these properties be tuned for potential applications in fields such as nanomedicine and energy conversion?

answered Feb 14 in PhotoChemistry

1 answer 21 views

How does the process of protein degradation and turnover differ between normal cells and cancer cells, and how can this information be utilized in the development of targeted cancer therapies?

answered Feb 14 in BioChemistry

1 answer 7 views

How do metal ions coordinate with amino acid residues in metalloproteins to facilitate catalysis? Provide specific examples and describe the role of the metal ion in each case.

asked Feb 13 in Coordination Chemistry

1 answer 45 views

Which type of inorganic solid is KCl, NaCl and MgO? Ionic, covalent or metallic? Provide a brief explanation for your answer.

asked Feb 13 in Inorganic Chemistry

1 answer 47 views

How do G protein-coupled receptors (GPCRs) initiate signal transduction pathways in cells and how can their activity be modulated by different allosteric ligands?

answered Feb 13 in BioChemistry

1 answer 8 views

What are the key factors to consider in designing an efficient and cost-effective process for the production of adhesives, and how can these factors be optimized to enhance the quality and consistency of the final product?

asked Feb 12 in Chemical engineering

1 answer 30 views

How can we design a storage and transportation system for hazardous chemicals that minimizes the risk of leaks, spills, or accidents while also ensuring efficient and cost-effective handling?

answered Feb 12 in Chemical engineering

1 answer 36 views

How can the mechanical properties of 3D printed polymer-based materials be improved to meet or exceed those of conventionally manufactured parts, without compromising printability or processing efficiency?

answered Feb 10 in Polymer Chemistry

1 answer 14 views

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

answered Feb 7 in Polymer Chemistry

1 answer 43 views

How can different types of diisocyanates and polyols be optimally combined to synthesize polyurethane with desirable mechanical, thermal, and chemical properties?

asked Feb 5 in Chemical synthesis

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