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Answers by HungZ257369
0
votes
31
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What is the effect of the orientation of reactant molecules on the rate of a chemical reaction? Provide examples of reactions and factors that affect the orientation of reactant molecules.
answered
Feb 22
in
Chemical kinetics
0
votes
27
views
How does the formation of a passive layer on the surface of a metal prevent corrosion, and what factors influence the formation of this layer?
answered
Feb 20
in
Surface Chemistry
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34
views
What is the polarity of the bond between carbon and oxygen in carbon monoxide?
answered
Feb 18
in
Chemical bonding
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27
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How does the addition of nanoparticles affect the mechanical properties of a polymer nanocomposite?
answered
Feb 17
in
Polymer Chemistry
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votes
31
views
What is the mechanism behind the enhancement of Raman signals in Surface-enhanced Raman spectroscopy (SERS)?
answered
Feb 17
in
Surface Chemistry
0
votes
31
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How does surface modification affect the physical and chemical properties of a polymer, and what are some practical applications of this technique?
answered
Feb 17
in
Surface Chemistry
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votes
44
views
How do persistent organic pollutants (POPs) accumulate in the environment, and what are the potential health and environmental impacts of their buildup in ecosystems?
answered
Feb 14
in
Environmental Chemistry
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votes
72
views
How can we design an interactive approach to enhance basic chemistry knowledge among individuals with limited exposure to chemistry in everyday life?
answered
Feb 12
in
Chemical education
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votes
95
views
How can the production process of surfactants be optimized to minimize waste and increase efficiency, while ensuring that the final product meets industry standards and is environmentally sustainable?
answered
Feb 10
in
Chemical engineering
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votes
108
views
How can the process for the production of polymers be optimized to minimize waste and increase efficiency? Include specific steps and techniques that can be utilized to achieve these goals.
answered
Feb 10
in
Chemical engineering
0
votes
45
views
How can chemistry students better prepare themselves for careers in the industry to ensure they have the necessary skills and knowledge to succeed in their field?
answered
Feb 4
in
Chemical education
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votes
33
views
How can chemistry educators provide better support for students with learning disabilities in the classroom?
answered
Feb 4
in
Chemical education
0
votes
79
views
Calculate the enthalpy of adsorption for the adsorption of hydrogen gas onto a nickel surface at 25°C, given that the equilibrium pressure of hydrogen gas is 0.5 atm and the surface coverage is 0.2 monolayers. The heat of dissociation of hydrogen gas is 436 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
63
views
Calculate the enthalpy change for the hydrolysis of 5 moles of methyl acetate using the given bond enthalpies: C-O (360 kJ/mol), C=O (740 kJ/mol), O-H (460 kJ/mol), and C-H (410 kJ/mol).
answered
Jan 23
in
ThermoChemistry
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64
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Calculate the enthalpy change for the combustion of methane gas if 10 grams of methane is burned completely in the presence of excess oxygen gas. Given the following balanced chemical equation: CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)The standard enthalpy of formation for methane gas is -74.8 kJ/mol, carbon dioxide gas is -393.5 kJ/mol, and water vapor is -241.8 kJ/mol.
answered
Jan 23
in
Chemical thermodynamics
0
votes
80
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Calculate the bond dissociation energy (in kJ/mol) of chlorine gas (Cl2) if it requires 243 kJ of energy to break a single Cl-Cl bond in the gas phase.
answered
Jan 23
in
ThermoChemistry
0
votes
71
views
According to the humanistic approach to psychology, what is the fundamental motivation that drives human behavior?
answered
Jan 20
in
Psychology
0
votes
46
views
What is the cognitive-behavioural model of anxiety?
answered
Jan 20
in
Psychology
0
votes
80
views
What is the Gestalt Therapy approach?
answered
Jan 16
in
Psychology
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42
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How can we evaluate the degree of integration between theory and practice in psychodynamic research?
answered
Jan 16
in
Psychology
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