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1
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What is the relationship between the intermolecular forces present in a substance and its boiling point, and how can we predict the boiling point of a given substance based on its intermolecular forces?
asked
1 day
ago
in
Chemical bonding
0
votes
1
answer
19
views
How do the production and usage of solar energy impact the environment in terms of greenhouse gas emissions and waste generation, and what are the methods that can be employed to mitigate these negative effects?
asked
3 days
ago
in
Environmental Chemistry
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votes
1
answer
21
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Identify the type of inorganic compound formed by the combination of sodium and chlorine atoms. Is it ionic, covalent or metallic? Explain your answer.
asked
5 days
ago
in
Inorganic Chemistry
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votes
1
answer
35
views
What is the effect of various catalysts on the reaction rate of the decomposition of hydrogen peroxide, and how do the results show the catalytic properties of each catalyst?
asked
5 days
ago
in
Chemical kinetics
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1
answer
26
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What is the bond order and bond length of the carbon monoxide molecule (CO)?
asked
Feb 18
in
Inorganic Chemistry
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votes
1
answer
31
views
How does the binding affinity between DNA and transcription factors affect gene expression regulation?
asked
Feb 17
in
BioChemistry
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1
answer
30
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How does prolonged exposure to high levels of air pollutant particles, such as PM2.5, affect the human respiratory system and overall health?
asked
Feb 14
in
Environmental Chemistry
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votes
1
answer
29
views
How can the yield of a certain flavor compound be optimized in a production system?
asked
Feb 14
in
Chemical engineering
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votes
1
answer
39
views
What is the effect of surface area and particle size of the catalyst on its efficiency in heterogeneous catalysis, and what is the mechanism by which it operates?
asked
Feb 13
in
Surface Chemistry
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votes
1
answer
37
views
How do environmental regulations, such as the Clean Air Act and the Clean Water Act, impact the quality of air and water in industrialized areas, and what improvements do they offer in protecting the environment?
asked
Feb 13
in
Environmental Chemistry
0
votes
1
answer
39
views
How can the photochemical properties of transition metal complexes be manipulated to design more efficient light-harvesting systems for energy conversion applications?
asked
Feb 10
in
PhotoChemistry
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votes
1
answer
38
views
How can the knowledge of the molecular structure of a specific target virus be used to design drugs that selectively and effectively target the virus, while minimizing side effects on human cells?
asked
Feb 7
in
Medicinal Chemistry
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votes
1
answer
52
views
Given a certain substance with a mass of 25 grams and an initial temperature of 25°C, if it absorbs 500 joules of heat energy, what is the final temperature of the substance? The heat capacity of the substance is 0.5 J/g·°C.
asked
Feb 4
in
Chemical thermodynamics
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votes
1
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67
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Calculate the standard enthalpy change and entropy change for the reaction: 2Fe(s) + 3/2O2(g) -> Fe2O3(s) Given the standard enthalpies of formation of Fe(s), O2(g), and Fe2O3(s) are -0.44 kJ/mol, 0 kJ/mol, and -826 kJ/mol, respectively. Also, the standard molar entropy of Fe2O3(s) is 87.4 J/(mol K).
asked
Feb 3
in
Inorganic Chemistry
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votes
1
answer
82
views
What are the top 5 reasons that students often find it difficult to understand the periodic table and chemical elements? Provide specific examples and explain how teachers and resources can help overcome these challenges.
asked
Jan 30
in
Chemical education
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votes
1
answer
94
views
What is the composition of a given protein sample and its relative abundance using electrophoresis analysis?
asked
Jan 30
in
Analytical Chemistry
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1
answer
31
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Who introduced the Heuristics and Biases Program?
asked
Jan 20
in
Psychology
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votes
1
answer
36
views
What is the aim of narrative therapy?
asked
Jan 20
in
Psychology
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votes
1
answer
66
views
What is the impact of historical events on the chronosystem?
asked
Jan 17
in
Psychology
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votes
1
answer
69
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According to decision-making research, what role do emotions play in decision making?
asked
Jan 17
in
Psychology
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