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How does the size and shape of microplastics affect their toxicity levels to marine organisms, and what chemical reactions or processes occur when these microplastics accumulate in the marine food chain?
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22 hours
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Environmental Chemistry
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25
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How does the size and shape of a catalyst affect its activity and selectivity in a chemical reaction?
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23 hours
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Quantum Chemistry
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What is the reaction mechanism for the substitution of bromine with hydroxide ion in an acidic medium and what is the role of the intermediate formed in this reaction?
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1 day
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Organic Chemistry
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29
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How does the presence of reaction intermediates affect the rate of a chemical reaction, and what techniques can be used to investigate this effect?
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3 days
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Chemical kinetics
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13
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How does the presence of heavy metals in water affect the growth rate of a specific species of aquatic plant?
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3 days
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Environmental Chemistry
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21
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How does the presence of a functional group on the fluorescent dye molecule affect its photochemical properties, such as excitation and emission wavelengths?
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3 days
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PhotoChemistry
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23
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How does the pore size of activated carbon affect the adsorption of water pollutants?
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3 days
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Surface Chemistry
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How does the photochemical behavior of coordination compounds differ from that of organic molecules? Provide examples of both and explain the underlying principles behind the observed differences.
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3 days
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PhotoChemistry
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13
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What is the optimum Si/Al ratio needed for the catalytic cracking of hydrocarbons in zeolites using computational chemistry techniques?
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3 days
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Computational Chemistry
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24
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How does the coordination chemistry of iron in hemoglobin affect its ability to bind oxygen and transport it throughout the body?
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6 days
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Coordination Chemistry
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21
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How does the concentration of a reactant or catalyst affect the rate and efficiency of a chemical reaction?
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6 days
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Chemical kinetics
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29
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How does the choice of polymer electrolyte affect the performance of a lithium-ion battery?
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6 days
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Polymer Chemistry
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What is the carbon footprint of a typical household and how can it be reduced through the adoption of environmentally-friendly practices?
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Feb 18
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Environmental Chemistry
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21
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How does the activation of the enzyme Phospholipase A2 lead to the production of signaling molecules such as prostaglandins and leukotrienes in the arachidonic acid pathway of lipid metabolism?
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Feb 17
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BioChemistry
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24
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What is the crystal structure of table salt (NaCl) and how does it differ from that of iron (Fe)?
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Feb 17
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Physical Chemistry
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28
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How can we predict the catalytic activity and selectivity of a nanoparticle catalyst in a particular chemical reaction using quantum chemistry calculations?
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Feb 14
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Quantum Chemistry
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What are the factors that affect the pharmacokinetics of a drug in the human body, and how can we quantify the drug's bioavailability, distribution, metabolism, and elimination?
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Feb 14
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Medicinal Chemistry
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32
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How can you optimize the process parameters, such as temperature, pressure, and reactant concentration, for the production of a specific pharmaceutical drug to increase the yield and purity of the product while minimizing production costs?
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Feb 14
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Chemical engineering
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30
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How can we optimize the composition of a paint formulation to achieve the desired color, durability, and viscosity, while minimizing the use of toxic or harmful chemicals?
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Feb 14
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Chemical engineering
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37
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How do fluctuations in temperature affect the release of volatile organic compounds (VOCs) from common household products and what is the impact of such emissions on air quality?
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Feb 13
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Environmental Chemistry
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