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User JaneW5862561
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Answers by JaneW5862561
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20
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How do the photochemical properties of supramolecular assemblies differ from those of individual molecules and what factors influence their behavior?
answered
3 days
ago
in
PhotoChemistry
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votes
20
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How can we use the periodic table to predict the chemical behavior and properties of elements?
answered
3 days
ago
in
Chemical education
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votes
33
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How does the mismatch repair system in DNA replication correct errors in base pairing that may cause mutations?
answered
4 days
ago
in
BioChemistry
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25
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How do the temperature and magnetic field affect the critical current density of high-temperature superconducting materials?
answered
6 days
ago
in
Materials Chemistry
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votes
26
views
How does paracetamol (acetaminophen) undergo metabolism in the liver, and what are the different metabolites formed during this process?
answered
Feb 14
in
Medicinal Chemistry
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45
views
What is the role of metal ions in the catalytic activity of metalloenzymes and metalloproteins, and how is the metal coordination environment related to their function and specificity?
answered
Feb 13
in
Coordination Chemistry
0
votes
37
views
Using the Lewis structure of a molecule, how many valence electrons are involved in the chemical bonding of carbon dioxide (CO2)?
answered
Feb 13
in
Chemical bonding
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votes
38
views
What is the predicted acidity or basicity of the molecule HCOOH? Provide a detailed explanation and justify your answer using relevant chemical principles.
answered
Feb 13
in
Chemical bonding
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votes
29
views
How can the physical and chemical properties of polymers be optimized to enhance the efficacy and accuracy of drug delivery systems?
answered
Feb 10
in
Polymer Chemistry
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votes
36
views
How can the chemical engineering principles be applied to design a cost-effective and efficient system for the production of natural flavors using raw materials that are readily available?
answered
Feb 6
in
Chemical engineering
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60
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Calculate the standard heat of formation (in kJ/mol) of water (H2O) given the following bond energies: H-H = 436 kJ/mol, O=O = 498 kJ/mol, H-O = 463 kJ/mol.
answered
Feb 3
in
Chemical bonding
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12
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Consider the following reaction: 2 SO2(g) + O2(g) ⇌ 2SO3(g) ΔH = -198 kJ/mol What will be the effect on the equilibrium concentration of SO3 if:a) The pressure of the system is increased?b) The concentration of SO2 is increased?c) A catalyst is added to the system?
answered
Jan 30
in
Chemical reactions
0
votes
75
views
What is the concentration of fluoride ions present in a sample of drinking water using a fluoride ion-selective electrode?
answered
Jan 30
in
Analytical Chemistry
0
votes
56
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How can Raman spectroscopy be used to identify the presence of a specific compound in a mixture, and what are the limitations and challenges associated with this technique?
answered
Jan 29
in
Analytical Chemistry
0
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58
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Balance the chemical equation for the reaction between potassium permanganate (KMnO4) and sodium sulfite (Na2SO3) in acidic solution.
answered
Jan 22
in
Chemical reactions
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79
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A student needs to find out how much heat is released or absorbed when 100 mL of 0.1 mol/L solution of barium chloride (BaCl2) is mixed with 150 mL of 0.1 mol/L solution of sodium sulfate (Na2SO4) at 25°C. Given the enthalpy of precipitation of BaSO4 as -256 kJ/mol, calculate the enthalpy change (in kJ) for the reaction that occurs and determine whether the reaction is exothermic or endothermic.
answered
Jan 22
in
ThermoChemistry
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31
views
Who is more likely to experience in-group favouritism?
answered
Jan 20
in
Psychology
0
votes
38
views
When might older adults experience 'despair'?
answered
Jan 17
in
Psychology
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28
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When might cognitive decline begin to occur in older adults?
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Jan 17
in
Psychology
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27
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When applying social learning theory in parenting, what is suggested for parents to reduce aggression?
answered
Jan 17
in
Psychology
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