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User HIELucille73
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What is the effect of changing the pH on the reaction rate between hydrochloric acid and magnesium metal, and how does this relationship vary with respect to changes in pH levels?
asked
Feb 22
in
Chemical kinetics
0
votes
1
answer
31
views
What is the optimum reaction condition (temperature, pressure, and catalyst concentration) for synthesizing high molecular weight polyvinylpyrrolidone from vinylpyrrolidone monomer using a free radical polymerization technique?
asked
Feb 22
in
Chemical synthesis
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votes
1
answer
33
views
What is the critical micelle concentration of sodium dodecyl sulfate in water at room temperature? Provide calculations to support your answer.
asked
Feb 19
in
Surface Chemistry
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votes
1
answer
34
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How does the binding of metal ions to metalloenzymes and metalloproteins affect their function and activity in biological systems?
asked
Feb 17
in
Coordination Chemistry
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votes
1
answer
106
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How effective are current environmental regulations in reducing pollution and protecting the environment? A comparative analysis of the effectiveness of environmental regulations across different countries and industries.
asked
Feb 13
in
Environmental Chemistry
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votes
1
answer
71
views
What is the effect of doping concentration on the electrical conductivity of a semiconductor material used in electronic devices, and how does it impact the device performance?
asked
Feb 12
in
Materials Chemistry
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votes
1
answer
75
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Given the electrochemical reaction Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s), calculate the standard cell potential at 25°C if the standard reduction potentials are E°(Cu2+/Cu) = 0.34 V and E°(Zn2+/Zn) = -0.76 V.
asked
Feb 4
in
ElectroChemistry
0
votes
1
answer
90
views
What is the reaction mechanism for the formation of a water molecule from hydrogen and oxygen gas using quantum chemical calculations?
asked
Jan 31
in
Computational Chemistry
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votes
1
answer
63
views
Calculate the heat required to sublime 25 grams of dry ice (CO2) at a temperature of -78.5 °C if the enthalpy of sublimation is 25.2 kJ/mol.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
64
views
Compare the different theories of language development.
asked
Jan 20
in
Psychology
0
votes
1
answer
92
views
What is the main strength of the cognitive-behavioural model?
asked
Jan 15
in
Psychology
0
votes
1
answer
70
views
Please compare the modular and distributed processing models.
asked
Jan 15
in
Psychology
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votes
1
answer
88
views
What is the Social Ecological Model?
asked
Jan 15
in
Psychology
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votes
1
answer
94
views
What is the function of reinforcement in operant conditioning?
asked
Jan 15
in
Psychology
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votes
1
answer
89
views
What is prosopagnosia?
asked
Jan 14
in
Psychology
0
votes
1
answer
50
views
Where do plates move apart in oceans and on land?
asked
Jan 8
in
Science
0
votes
1
answer
40
views
When hot water gently rises to the surface, it creates a what?
asked
Jan 8
in
Science
0
votes
1
answer
45
views
What is the term for materials that have been left behind by organisms that once lived?
asked
Jan 7
in
Science
0
votes
1
answer
107
views
What is the process by which organisms break down chemicals to make food energy?
asked
Jan 7
in
Science
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votes
1
answer
54
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What is the most dangerous type of radiation?
asked
Jan 7
in
Science
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