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What is the impact of increasing atmospheric carbon dioxide (CO2) levels on the Earth's surface temperature, and how does the chemical composition of greenhouse gases contribute to global warming?
asked
Feb 20
in
Environmental Chemistry
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votes
1
answer
28
views
What is the boiling point of magnesium chloride (MgCl2) if its melting point is -711°C? (Assuming standard pressure and the compound is in its solid form when heated to its boiling point.)
asked
Feb 17
in
Inorganic Chemistry
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1
answer
42
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How does surface modification of nanoparticles affect their stability, reactivity, and interaction with biological systems?
asked
Feb 17
in
Surface Chemistry
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votes
1
answer
42
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How do the photochemical properties of quantum dots change with variations in their size and composition?
asked
Feb 14
in
PhotoChemistry
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1
answer
40
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How does the chemical process of ozone layer depletion occur and what is the role of chlorofluorocarbons (CFCs) in the process? Additionally, what are the potential impacts of ozone depletion on the atmosphere and human health?
asked
Feb 14
in
Environmental Chemistry
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votes
1
answer
35
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How can the mechanical and chemical properties of polymer-based biomaterials be optimized to enhance tissue regeneration and functional restoration in case of tissue damage or diseases?
asked
Feb 7
in
Polymer Chemistry
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votes
1
answer
38
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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?
asked
Feb 6
in
Chemical engineering
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votes
1
answer
84
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Calculate the vibrational frequencies and predict the infrared spectrum of methane (CH4) using quantum chemical methods.
asked
Feb 3
in
Quantum Chemistry
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votes
1
answer
58
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Calculate the standard electrode potential for a redox reaction involving the reaction of iron (Fe) with copper (Cu) ions, given the following half-reactions: Fe2+ + 2e- → FeCu2+ + 2e- → Cu (Note: The standard electrode potential values for Cu2+/Cu and Fe2+/Fe half-cells at 25°C are 0.34V and -0.44V, respectively.)
asked
Feb 3
in
Chemical thermodynamics
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1
answer
59
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What is the effect of changing the concentrations of reactants and products on the equilibrium constant (K) and reaction rate for the reaction: A + B ⇌ C + D?
asked
Feb 3
in
Chemical kinetics
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votes
1
answer
79
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How does the process of carbon fixation contribute to the overall process of photosynthesis, and what role does the enzyme Rubisco play in this process?
asked
Jan 31
in
BioChemistry
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votes
1
answer
74
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Calculate the HOMO-LUMO energy gap of a conjugated polymer with a repeating unit of poly(p-phenylene vinylene) (PPV) using quantum chemical methods (such as Density Functional Theory) and determine whether the polymer is expected to exhibit optoelectronic activity in the visible region of the electromagnetic spectrum.
asked
Jan 23
in
Quantum Chemistry
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1
answer
47
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Calculate the band gap and optical absorption spectrum of a graphene monolayer using quantum chemical calculations and compare it with that of a MoS2 monolayer. Which material would be more suitable for optoelectronic devices? Explain your reasoning.
asked
Jan 23
in
Quantum Chemistry
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votes
1
answer
142
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A student has 20 grams of iron and 40 grams of oxygen. What is the limiting reactant in the reaction between iron and oxygen to form iron oxide (FeO)? How many grams of FeO can be produced assuming complete reaction and no excess reactants?
asked
Jan 22
in
Chemical reactions
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votes
1
answer
90
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According to the attentional capture theory, what can capture our attention?
asked
Jan 20
in
Psychology
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votes
1
answer
70
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Where is colour vision processed in the brain?
asked
Jan 17
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Psychology
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0
answers
86
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When was the theory of schema therapy developed?
asked
Jan 16
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Psychology
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votes
1
answer
67
views
According to the social cognitive theory, what are the three factors that influence behaviour?
asked
Jan 15
in
Psychology
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votes
1
answer
37
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What is schema?
asked
Jan 15
in
Psychology
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votes
1
answer
60
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What is comparative cognition?
asked
Jan 14
in
Psychology
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