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How does the size and shape of nanomaterials affect their catalytic activity in a specific reaction?
asked
Feb 24
in
Materials Chemistry
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votes
1
answer
35
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How does the molecular structure of a polymer affect its mechanical properties, and how can this knowledge be used to design polymers for use in biomedical applications such as drug delivery or tissue engineering?
asked
Feb 21
in
Materials Chemistry
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votes
1
answer
56
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What is the effect of increasing the concentration of reactants on the reaction rate and equilibrium of a chemical reaction?
asked
Feb 13
in
Chemical kinetics
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1
answer
49
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How can the effectiveness of a catalyst be measured in catalytic reactions involving the hydrogenation of ethene?
asked
Feb 7
in
Physical Chemistry
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1
answer
37
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How can chemistry teachers spark interest in the subject among students who perceive it as difficult and uninteresting?
asked
Feb 6
in
Chemical education
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1
answer
70
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Calculate the enthalpy of ionization of hydrogen atom from hydrogen molecule given that the bond dissociation enthalpy of H2 is 432 kJ/mol and the electron affinity of H atom is -72.8 kJ/mol.
asked
Jan 23
in
ThermoChemistry
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1
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81
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A chemistry student needs to determine the percent composition of nitrogen (N) in a sample of an unknown organic compound. Using elemental analysis, the student determines the mass of the sample to be 0.254 g and the mass of the products after combustion to be 0.727 g of CO2 and 0.298 g of H2O. What is the percent composition of nitrogen in the sample?
asked
Jan 22
in
Analytical Chemistry
0
votes
1
answer
43
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What is the significance of the therapeutic alliance?
asked
Jan 20
in
Psychology
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votes
1
answer
133
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How might stress and coping theory be relevant to end-of-life care?
asked
Jan 20
in
Psychology
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1
answer
102
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When can social facilitation lead to improved performance?
asked
Jan 20
in
Psychology
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1
answer
62
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Why is groupthink dangerous?
asked
Jan 20
in
Psychology
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1
answer
35
views
What is testability in theory evaluation?
asked
Jan 16
in
Psychology
0
votes
1
answer
81
views
Why do behaviourists believe that behaviour is shaped by consequences?
asked
Jan 15
in
Psychology
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votes
1
answer
36
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What is the cognitive dissonance theory's impact on self-perception?
asked
Jan 15
in
Psychology
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1
answer
57
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What are the stages of sleep?
asked
Jan 13
in
Psychology
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1
answer
37
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Which law means that the simplest of competing theories is most likely to be correct?
asked
Jan 8
in
Science
0
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1
answer
54
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What size of ring will a summer drought cause in a tree?
asked
Jan 7
in
Science
0
votes
1
answer
84
views
What molecule consists of two atoms of hydrogen and one atom of oxygen?
asked
Jan 7
in
Science
0
votes
1
answer
41
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What happens to water when it is heated in the broiler?
asked
Jan 6
in
Science
0
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1
answer
76
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What effect in the atmosphere ensures that the earth maintains the correct temperature to support life?
asked
Jan 6
in
Science
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