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votes
1
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37
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How do the properties of polymer-based 3D printing materials impact the printing process and the resulting printed objects?
asked
Feb 22
in
Polymer Chemistry
0
votes
1
answer
32
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How does the orientation of magnetic fields affect the electronic properties of topological materials such as graphene?
asked
Feb 22
in
Quantum Chemistry
0
votes
1
answer
31
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What is the effect of pH on the rate of reaction between hydrochloric acid and magnesium?
asked
Feb 19
in
Chemical kinetics
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1
answer
26
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What is the boiling point of cyclohexane and n-hexane at atmospheric pressure, and why is it higher for cyclohexane despite having the same number of carbon atoms as n-hexane?
asked
Feb 17
in
Organic Chemistry
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1
answer
69
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How does temperature affect the reaction rate and overall efficiency of the reaction between hydrochloric acid and magnesium ribbon?
asked
Feb 17
in
Chemical kinetics
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1
answer
61
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What is the role of metal ions in the active sites of metalloenzymes such as cytochrome c oxidase, and how does the coordination chemistry of these metal ions contribute to the enzyme's catalytic activity?
asked
Feb 13
in
Coordination Chemistry
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votes
1
answer
73
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Calculate the standard enthalpy change (∆H°) for the combustion of methane (CH4(g)) given the balanced equation: CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)(Note: The values of standard enthalpies of formation of CO2(g), H2O(l) and CH4(g) are -393.5 kJ/mol, -285.8 kJ/mol, and -74.8 kJ/mol, respectively)
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
71
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Calculate the rate of the electrochemical reaction when a current of 2.5 A is passed through a solution of copper sulphate for 2 hours, and 4 g of copper is formed at the cathode. The atomic weight of copper is 63.5 g/mol.
asked
Feb 3
in
ElectroChemistry
0
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1
answer
61
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How can liquid chromatography be used to quantify the amount of caffeine present in a sample of coffee?
asked
Jan 29
in
Analytical Chemistry
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1
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81
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Calculate the boiling point of potassium chloride (KCl) using the Clausius-Clapeyron equation, given that its enthalpy of vaporization is 40.0 kJ/mol and its standard boiling point is 1500 K. What would be the expected boiling point of KCl at an atmospheric pressure of 1.0 atm (760 mmHg)?
asked
Jan 23
in
Inorganic Chemistry
0
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1
answer
65
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What is the Reid technique?
asked
Jan 20
in
Psychology
0
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1
answer
63
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Why is Erikson's theory of psychosocial development important to psychology?
asked
Jan 17
in
Psychology
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1
answer
57
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According to the Cognitive Dissonance theory, how does inconsistency between attitudes and behaviour lead to attitude change?
asked
Jan 16
in
Psychology
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1
answer
115
views
Who is responsible for the hierarchy of needs?
asked
Jan 16
in
Psychology
0
votes
1
answer
62
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When evaluating a cognitive behavioural theory, what is meant by face validity?
asked
Jan 15
in
Psychology
0
votes
1
answer
35
views
What is agnosia?
asked
Jan 14
in
Psychology
0
votes
1
answer
59
views
What are flashbulb memories?
asked
Jan 14
in
Psychology
0
votes
1
answer
58
views
Where does photosynthesis occur in plants?
asked
Jan 8
in
Science
0
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1
answer
62
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Which type of plankton make food via photosynthesis?
asked
Jan 8
in
Science
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1
answer
63
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What type of feeders are sponges?
asked
Jan 8
in
Science
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