Recent activity by Samira94683

1 answer 25 views

How does the size and shape of a quantum dot or quantum well affect its electronic and optical properties?

answered 2 days ago in Quantum Chemistry

1 answer 27 views

In what ways do the photochemical properties of transition metal complexes differ from those of non-transition metal complexes, and how can this be explained by their electronic structures and crystal field splitting?

asked 5 days ago in PhotoChemistry

1 answer 31 views

What is the oxidation state of chromium in Cr2O3 and how does this relate to its role as an oxidizing agent in redox reactions?

answered 5 days ago in Chemical reactions

1 answer 23 views

What is the most efficient process for the production of biodiesel from vegetable oil using acid catalysis, and how can the quality of the biodiesel be improved by applying different refining techniques?

asked 5 days ago in Chemical engineering

1 answer 32 views

What is the molecular geometry and bond angles of ammonia (NH3) and how do they relate to its polarity and dipole moment?

asked 6 days ago in Quantum Chemistry

1 answer 27 views

How does the selective oxidation of hydrocarbons on metal surfaces occur, and what factors influence the selectivity of this reaction?

asked Feb 14 in Surface Chemistry

1 answer 37 views

What are the possible chemical reactions that occur when microplastics interact with seawater, and how do these reactions affect the toxicity and bioaccumulation of microplastics in marine organisms?

asked Feb 13 in Environmental Chemistry

1 answer 33 views

What type of inorganic compound is magnesium oxide (MgO)? Ionic, covalent or metallic? Justify your answer using relevant information from Inorganic Chemistry.

answered Feb 13 in Inorganic Chemistry

1 answer 42 views

How does the ligand geometry affect the electronic and magnetic properties of metallofullerenes and metalloclusters in coordination chemistry?

asked Feb 13 in Coordination Chemistry

1 answer 44 views

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

asked Feb 13 in Coordination Chemistry

1 answer 11 views

How can we design a cost-effective system for treating industrial wastewater that removes hazardous substances such as heavy metals and organic pollutants while also minimizing water waste and energy consumption?

answered Feb 12 in Chemical engineering

1 answer 37 views

How can the mechanical and electrical properties of polymer-based electronic materials be optimized for use in electronic devices?

answered Feb 7 in Polymer Chemistry

1 answer 26 views

How can practical applications of chemistry be better incorporated into the classroom curriculum to enhance the understanding and relevance of the subject for students?

asked Feb 5 in Chemical education

1 answer 32 views

How can chemical engineers design an efficient system for the recovery of valuable metals such as gold, silver, copper, and platinum from electronic waste while minimizing the generation of harmful pollutants?

answered Feb 4 in Chemical engineering

1 answer 11 views

Consider the reaction: 2H2O (g) ⇄ 2H2 (g) + O2 (g) At 1000 K, the equilibrium constant Kc for this reaction is 4.17 x 10^-5. Suppose that initially, 0.10 moles of H2O, 0.20 moles of H2, and 0.20 moles of O2 are placed in a 1.0 L container at 1000 K. What will be the equilibrium concentrations of H2O, H2, and O2?

answered Feb 3 in Chemical equilibrium

1 answer 45 views

How does changing the reactant concentrations in a chemical reaction affect the rate of reaction and the reaction stoichiometry? Provide experimental evidence to support your answer using the reaction between potassium iodide and hydrogen peroxide.

answered Feb 3 in Chemical kinetics

1 answer 47 views

How does changing the number of unpaired electrons in a molecule affect its magnetic properties, and how can these changes be calculated using quantum chemistry methods?

asked Feb 3 in Quantum Chemistry

1 answer 51 views

What is the effect of changing the concentration of reactants on the equilibrium constant for a chemical reaction and how can it be measured experimentally?

answered Feb 3 in Chemical kinetics

1 answer 48 views

What is the effect of changing the anion of an ionic liquid on its physical properties?

answered Jan 31 in Physical Chemistry

1 answer 75 views

How does the mechanism of Alternative Splicing work in RNA processing? Provide a detailed explanation of the different mechanisms that regulate the splicing process, and discuss the factors that contribute to the selection of specific splicing patterns. Additionally, compare and contrast the advantages and disadvantages of Alternative Splicing in terms of their impact on gene expression and cellular function.

asked Jan 31 in BioChemistry

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