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1
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32
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What is the molecular geometry of a water molecule (H2O) and what is the bond angle between the two hydrogen atoms and the oxygen atom?
asked
Feb 21
in
Chemical bonding
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votes
1
answer
34
views
What is the rate law expression for the reaction between hydrogen and oxygen gasses to form water, and what is the overall order of the reaction?
asked
Feb 17
in
Physical Chemistry
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votes
1
answer
32
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How does the drug metformin work in treating type 2 diabetes and what specific biochemical pathways does it interact with?
asked
Feb 13
in
Medicinal Chemistry
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votes
1
answer
79
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What is the effect of combining ibuprofen and aspirin on the blood-thinning properties of aspirin?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
43
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How can the physical and chemical properties of a drug be optimized to enhance its efficacy in drug delivery systems?
asked
Feb 10
in
Medicinal Chemistry
0
votes
1
answer
42
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How can the efficiency of a surfactant production system be optimized by adjusting the reaction conditions and reactor design parameters?
asked
Feb 7
in
Chemical engineering
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1
answer
35
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How can chemistry educators improve the emphasis on practical applications of chemistry in the classroom to better prepare students for future careers in the field?
asked
Feb 4
in
Chemical education
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1
answer
87
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Calculate the standard enthalpy of formation of glucose (C6H12O6) given that the standard enthalpies of combustion for glucose, carbon, and hydrogen are -2803.6 kJ/mol, -393.5 kJ/mol, and -285.8 kJ/mol, respectively.
asked
Feb 3
in
ThermoChemistry
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votes
1
answer
44
views
Calculate the standard enthalpy change for the neutralization reaction between hydrochloric acid and sodium hydroxide, given the balanced chemical equation: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) and the enthalpy change of formation values: ∆Hf°(NaCl(aq)) = -407.3 kJ/mol ∆Hf°(H2O(l)) = -285.83 kJ/mol ∆Hf°(HCl(aq)) = -167.2 kJ/mol ∆Hf°(NaOH(aq)) = -469.11 kJ/mol
asked
Feb 3
in
Chemical thermodynamics
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1
answer
104
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Calculate the standard enthalpy change (ΔH°), standard entropy change (ΔS°) and standard Gibbs free energy change (ΔG°) of the reaction:2A(g) + 3B(g) → C(g) + 2D(g)given thatΔH°f[A(g)] = 200 kJ mol^-1Δ H°f [B(g)] = 100 kJ mol^-1Δ H°f [C(g)] = 400 kJ mol^-1Δ H°f [D(g)] = 0 kJ mol^-1ΔH°= -400 kJ mol^-1Temperature (T) = 298 KThe student needs to use their knowledge in quantum chemistry and thermodynamics to calculate the thermodynamic properties of the given reaction.
asked
Feb 3
in
Quantum Chemistry
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1
answer
80
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Calculate the amount of energy required to melt 50 grams of ice at 0°C, given the enthalpy of fusion for water is 6.01 kJ/mol.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
73
views
What is the goal of the social identity theory?
asked
Jan 20
in
Psychology
0
votes
1
answer
35
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Where do discursive psychologists look for evidence when studying language?
asked
Jan 15
in
Psychology
0
votes
1
answer
91
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Where can drive theory be applied in everyday life?
asked
Jan 15
in
Psychology
0
votes
1
answer
84
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Please compare the connectionist theory and the modular theory of mind.
asked
Jan 15
in
Psychology
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votes
1
answer
38
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According to Albert Bandura's social-cognitive theory, what is the term used to describe the beliefs that people have about their abilities to influence events in their lives?
asked
Jan 15
in
Psychology
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1
answer
17
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What is the significance of spirituality and religion in understanding grief?
asked
Jan 14
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Psychology
0
votes
1
answer
39
views
What is the cognitive miser theory?
asked
Jan 14
in
Psychology
0
votes
1
answer
37
views
Which law describes the angle at which the reflected rays leave the surface is equal to the angle at which the incident rays strike the surface?
asked
Jan 8
in
Science
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1
answer
38
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What is quantified by measuring the number of decay processes per unit time?
asked
Jan 6
in
Science
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