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How does the release of carbon dioxide and other greenhouse gases from daily human activities contribute to global warming, and what measures can individuals take to reduce their carbon footprint and mitigate their impact on the environment?
answered
Feb 24
in
Environmental Chemistry
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votes
30
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What is the bond strength of carbon dioxide and how does it compare to the bond strength of methane?
answered
Feb 18
in
Chemical bonding
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36
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What is the boiling point of sodium chloride (NaCl) at standard atmospheric pressure (1 atm)? Show your complete calculation.
answered
Feb 14
in
Inorganic Chemistry
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votes
39
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How does increasing the pH of a redox reaction involving copper ions and iodide ions affect the equilibrium concentration of copper ions and iodine molecules?
answered
Feb 13
in
Chemical equilibrium
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votes
41
views
How can the integration of technology in chemistry education be improved to help students better understand complex concepts and perform virtual experiments that are as effective as hands-on experiments?
answered
Feb 7
in
Chemical education
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votes
68
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Calculate the standard enthalpy change for the reaction: CH3OH (l) + 3/2 O2 (g) -> CO2 (g) + 2H2O (l) given the standard enthalpies of formation for CH3OH (l), CO2 (g) and H2O (l) as -238.6 kJ/mol, -393.5 kJ/mol and -285.8 kJ/mol respectively.
answered
Feb 3
in
Chemical thermodynamics
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votes
18
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What is the critical micelle concentration (CMC) of surfactant X in an aqueous solution at 25°C? Provide a detailed explanation of the method used to determine the CMC of surfactants and discuss the significance of CMC in surface chemistry.
answered
Jan 31
in
Surface Chemistry
0
votes
72
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How can X-ray fluorescence spectroscopy be used to identify the presence of specific elements in a sample? Provide a step-by-step procedure for using X-ray fluorescence spectroscopy to analyze an unknown sample and determine the elements present in it. Also, discuss the limitations and advantages of using this technique in comparison with other analytical methods.
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Jan 30
in
Analytical Chemistry
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75
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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.
answered
Jan 23
in
Quantum Chemistry
0
votes
85
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According to the theory of multiple intelligences, what are the different kinds of intelligence that individuals can possess?
answered
Jan 20
in
Psychology
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votes
49
views
How does the Mere-Exposure Effect relate to persuasion?
answered
Jan 20
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Psychology
0
votes
77
views
How do group therapy and individual therapy differ?
answered
Jan 17
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Psychology
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votes
31
views
Please evaluate the behavioural genetics research.
answered
Jan 17
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Psychology
0
votes
52
views
When treating depression, what is cognitive-behavioural therapy?
answered
Jan 17
in
Psychology
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votes
33
views
Who developed the concept of tardive dyskinesia?
answered
Jan 16
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Psychology
0
votes
69
views
What is the main idea behind self-determination theory?
answered
Jan 15
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Psychology
0
votes
85
views
What is client-centered therapy?
answered
Jan 14
in
Psychology
0
votes
41
views
What is disenfranchised grief?
answered
Jan 14
in
Psychology
0
votes
62
views
What are the disadvantages of the social theory of anxiety?
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Jan 13
in
Psychology
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votes
53
views
Which theory explains how materials can collide and become new materials?
answered
Jan 8
in
Science
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