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0
votes
1
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33
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How does the change in reactant concentrations affect the rate of a chemical reaction when the stoichiometry is varied?
asked
Feb 22
in
Chemical kinetics
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votes
1
answer
29
views
What is the mechanism for the photochemical reaction of benzene and chlorine, and how does the mechanism differ when compared to the photochemical reaction of benzene and bromine?
asked
Feb 22
in
PhotoChemistry
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votes
1
answer
30
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What is the enthalpy change for the combustion of 2 moles of methane (CH4) at standard conditions (298 K and 1 atm pressure)?
asked
Feb 18
in
Chemical thermodynamics
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1
answer
36
views
How does the chemical structure of polymers affect their adhesion properties to different surfaces?
asked
Feb 18
in
Polymer Chemistry
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votes
1
answer
95
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How effective are environmental regulations in preventing or reducing pollution of water bodies in the United States?
asked
Feb 13
in
Environmental Chemistry
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1
answer
62
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Calculate the standard enthalpy change for the phase transition reaction of solid carbon dioxide (dry ice) at -78.5°C to gaseous carbon dioxide at 1 atm and 25°C, given the following information: The standard enthalpy of fusion of solid carbon dioxide is 8.4 kJ/mol and the standard enthalpy of vaporization of gaseous carbon dioxide is 22.1 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
75
views
Calculate the expected boiling point of lithium fluoride (LiF) using its experimental melting point and the heat of fusion, assuming it behaves ideally.
asked
Jan 23
in
Inorganic Chemistry
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votes
1
answer
67
views
Calculate the bond length of a carbon-hydrogen bond in ethane (C2H6). Given that the distance between carbon atoms is 1.54 Å and the bond angle between carbon and hydrogen is 109.5°.
asked
Jan 23
in
Chemical bonding
0
votes
1
answer
153
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Identify the number of stereoisomers for the compound 2,3-dichlorobutane, and draw their structures including R/S configurations for each chiral center present in the compound.
asked
Jan 21
in
Organic Chemistry
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1
answer
48
views
What is Vygotsky's sociocultural theory?
asked
Jan 20
in
Psychology
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1
answer
36
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What is the significance of positive psychology in counselling?
asked
Jan 20
in
Psychology
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votes
1
answer
63
views
Who is associated with the study of attachment theory?
asked
Jan 20
in
Psychology
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votes
1
answer
94
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When does confidentiality become particularly important in a research study?
asked
Jan 17
in
Psychology
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1
answer
45
views
How does attention impact perception?
asked
Jan 17
in
Psychology
0
votes
1
answer
50
views
What is meant by the term 'EEG'?
asked
Jan 15
in
Psychology
0
votes
1
answer
52
views
When the hydrogen is nearly used up, the star can fuse which element into heavier elements?
asked
Jan 8
in
Science
0
votes
1
answer
35
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What type of contamination causes almost 90% of diarrheal disease worldwide?
asked
Jan 8
in
Science
0
votes
1
answer
104
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What methods allow scientists to add to scientific knowledge and gain a better understanding of the world?
asked
Jan 7
in
Science
0
votes
1
answer
70
views
What kingdom of organisms constitutes up to 20 percent of all living things on earth in mass?
asked
Jan 7
in
Science
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1
answer
76
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What is the series of changes in the life of an organism?
asked
Jan 7
in
Science
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