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User VictorGanz19
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0
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72
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How has the historical and evolutionary development of chemistry shaped the current understanding and application of chemical principles and technologies?
answered
Feb 20
in
Chemical education
0
votes
93
views
How does the absorption spectrum of chlorophyll relate to the wavelengths of light used during photosynthesis, and how does this impact the efficiency of carbon fixation in plants?
answered
Feb 17
in
BioChemistry
0
votes
75
views
How does temperature affect the rate of reaction between sodium thiosulfate and hydrochloric acid?
answered
Feb 17
in
Chemical kinetics
0
votes
92
views
What is the oxidation state of nitrogen in the compound NH4+?
answered
Feb 13
in
Chemical reactions
0
votes
129
views
What is the oxidation state of nitrogen in ammonium nitrate [NH4NO3]?
answered
Feb 13
in
Chemical reactions
0
votes
121
views
What is the percentage purity of a given sample of aspirin when the melting point is determined to be 135°C? The literature melting point range for pure aspirin is 135-136°C.
answered
Feb 12
in
Analytical Chemistry
0
votes
113
views
How can the synthesis and characterization of new materials be optimized to enhance the efficiency of solar cells and increase their lifespan?
answered
Feb 11
in
Materials Chemistry
0
votes
64
views
How can the chemical engineers design and optimize a system to produce the flavor compounds of a specific fruit, while considering factors such as raw material selection, reaction conditions, separation techniques, and cost-effectiveness?
answered
Feb 6
in
Chemical engineering
0
votes
125
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Calculate the enthalpy change of combustion for ethane (C2H6) given that the standard enthalpy of formation for ethane is -84.68 kJ/mol, the standard enthalpy of formation for CO2 is -393.5 kJ/mol, and the standard enthalpy of formation for H2O is -241.8 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
54
views
Where was the first study on ketoconazole Nizoral conducted for anxiety?
answered
Jan 20
in
Psychology
0
votes
97
views
According to the Conservation of Resource theory, what is the main challenge for people undergoing end-of-life issues?
answered
Jan 16
in
Psychology
0
votes
59
views
What are the limitations of the charismatic approach to leadership?
answered
Jan 16
in
Psychology
0
votes
124
views
What is the concept of learned helplessness?
answered
Jan 15
in
Psychology
0
votes
47
views
What is the cognitive revolution in psychology?
answered
Jan 15
in
Psychology
0
votes
19
views
Why are case studys an important source of information?
answered
Jan 15
in
Psychology
0
votes
67
views
What is the role of the therapist in humanistic therapy?
answered
Jan 15
in
Psychology
0
votes
76
views
What are commonly used measures of correlation?
answered
Jan 14
in
Psychology
0
votes
70
views
Where does most of the sound we hear travel through?
answered
Jan 8
in
Science
0
votes
90
views
Which law relates the pressure, volume, and temperature of a gas?
answered
Jan 8
in
Science
0
votes
97
views
What were the first forms of life on earth?
answered
Jan 8
in
Science
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