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User UnaHolt18437
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Answers by UnaHolt18437
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What is the mechanism of the ring closure reaction of furan and pyrrole, and how does the basicity of nitrogen in pyrrole affect its reactivity compared to furan?
answered
1 day
ago
in
Organic Chemistry
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votes
27
views
How does the molecular weight of a polymer affect its physical properties such as viscosity and elasticity?
answered
4 days
ago
in
Physical Chemistry
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21
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What is the electronic structure of a water molecule and what are the molecular orbitals involved in its formation?
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5 days
ago
in
Quantum Chemistry
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27
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What is the effect of ligand substitution on the photochemical properties of lanthanide complexes? Provide an experimental analysis of the photophysical and photochemical behavior of a chosen lanthanide complex before and after ligand substitution.
answered
Feb 13
in
PhotoChemistry
0
votes
43
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How can you use isomerism to differentiate between structural and geometric isomers of a molecule? Provide an example of a molecule that exhibits both types of isomerism and explain how to distinguish between them using physical and chemical properties.
answered
Feb 13
in
Chemical bonding
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votes
32
views
What is the hybridization of the central atom in the inorganic compound PCl5?
answered
Feb 13
in
Inorganic Chemistry
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votes
30
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How does the coordination chemistry of metalloenzymes and metalloproteins contribute to the catalytic activity at the active site?
answered
Feb 12
in
Coordination Chemistry
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33
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How can the mechanical properties of polymer-based composites be optimized for use in aerospace applications, specifically in regards to improving the strength, stiffness, and heat resistance? What types of polymers and reinforcing materials are most effective for achieving these properties, and how can they be processed to achieve optimal performance?
answered
Feb 10
in
Polymer Chemistry
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votes
30
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How can the concepts of chemical reactions and stoichiometry be applied to the real-world scenario of baking a cake? Specifically, how can you calculate the amount of baking soda needed to react with the amount of vinegar in a recipe to produce the optimal amount of carbon dioxide for a fluffy cake?
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Feb 6
in
Chemical education
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votes
33
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How can the chemical engineering principles be applied to design an optimized system for the production of natural flavors that meet the required quality, quantity, and sustainable production goals?
answered
Feb 6
in
Chemical engineering
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36
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How can computational methods be used to predict the formation and stability of supramolecular complexes between different organic molecules?
answered
Feb 5
in
Computational Chemistry
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votes
57
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Calculate the heat of formation of a water molecule from its elements, hydrogen and oxygen gas, given that the standard enthalpy of formation of hydrogen gas is -285.8 kJ/mol and the standard enthalpy of formation of oxygen gas is 0 kJ/mol. Show all your work and explain what the resulting sign of the enthalpy of formation means in terms of the stability of the water molecule.
answered
Jan 23
in
Chemical bonding
0
votes
66
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What product(s) will result from the reaction between 1-bromopropane and sodium hydroxide under SN2 reaction conditions?
answered
Jan 21
in
Organic Chemistry
0
votes
57
views
Where was the first study on transcranial magnetic stimulation TMS conducted for anxiety?
answered
Jan 20
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Psychology
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53
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Where can classical conditioning be observed?
answered
Jan 20
in
Psychology
0
votes
57
views
According to the Cognitive Neuroscience of Consciousness, what is neural activity?
answered
Jan 17
in
Psychology
0
votes
32
views
Compare and contrast cognitive-behavioural therapy CBT with psychodynamic therapy.
answered
Jan 17
in
Psychology
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votes
38
views
Who proposed the concept of the cognitive model of PTSD?
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Jan 17
in
Psychology
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votes
34
views
What does a correlation coefficient of 1 indicate?
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Jan 17
in
Psychology
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20
views
How does Terror Management Theory TMT describe the fear of death?
answered
Jan 16
in
Psychology
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