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User PalmaYuille
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85
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What are the most commonly used pesticides in food production and what are their potential negative effects on human health due to pesticide residue buildup in the food chain?
answered
Feb 21
in
Environmental Chemistry
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votes
89
views
What is the mechanism behind the ability of detergents to remove dirt and stains from clothes at the molecular level?
answered
Feb 20
in
Surface Chemistry
0
votes
89
views
What is the effect of varying reactant concentrations on the reaction yield?
answered
Feb 20
in
Chemical kinetics
0
votes
73
views
How does the coordination of a metal ion affect the electronic and optical properties of metalloporphyrins and metallophthalocyanines, and how can this knowledge be applied in the development of new catalysts and materials?
answered
Feb 19
in
Coordination Chemistry
0
votes
95
views
What is the bond angle between the two hydrogen atoms in a water molecule, and how does the molecular geometry of water affect its properties?
answered
Feb 17
in
Quantum Chemistry
0
votes
87
views
How does the addition of a specific type of polymer to a medical implant affect its mechanical properties and overall performance in the body?
answered
Feb 17
in
Materials Chemistry
0
votes
76
views
What specific biomaterial properties should be considered and investigated for their potential use in tissue engineering, and how can these properties be optimized to enhance tissue regeneration and integration?
answered
Feb 13
in
Materials Chemistry
0
votes
132
views
How can we design drugs that have high specificity and effectiveness for treating genetic disorders caused by mutations in specific genes, such as cystic fibrosis or Huntington's disease?
answered
Feb 12
in
Medicinal Chemistry
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votes
179
views
What are the key chemical compounds and their ratios required to produce a long-lasting and captivating fragrance, and how can the manufacturing process be optimized to maximize yield with minimal waste?
answered
Feb 12
in
Chemical engineering
0
votes
183
views
What type of polymer-based sensor is suitable for detecting heavy metal ions in aqueous solutions, and how does its sensitivity compare to existing detection methods?
answered
Jan 30
in
Polymer Chemistry
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99
views
Calculate the enthalpy of solution for 10.0 g of potassium chloride (KCl) dissolved in 100 mL of water, given that the temperature of the solution decreases from 25°C to 20°C. Assume the heat capacity of the solution to be 4.184 J/g°C and that there is no heat loss to the surroundings.
answered
Jan 23
in
ThermoChemistry
0
votes
93
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Calculate the enthalpy of formation of sodium chloride from its constituent elements, given the following thermochemical equations:2Na (s) + 1/2 O2 (g) -> Na2O (s) ΔH° = -414.1 kJ/mol Na2O (s) + 1/2 Cl2 (g) -> NaCl (s) ΔH° = -411.2 kJ/mol
answered
Jan 23
in
ThermoChemistry
0
votes
65
views
According to the cognitive approach to memory, what are the processes involved in encoding, storing, and retrieving information?
answered
Jan 20
in
Psychology
0
votes
108
views
What is the difference between a 'discursive practice' and a 'discursive strategy'?
answered
Jan 16
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Psychology
0
votes
99
views
What is the social learning theory by Bandura?
answered
Jan 15
in
Psychology
0
votes
68
views
What is the difference between social loafing and social facilitation?
answered
Jan 15
in
Psychology
0
votes
115
views
What is meant by the term 'dorsal stream' in visual processing?
answered
Jan 15
in
Psychology
0
votes
66
views
What are the three major components of the information processing model?
answered
Jan 15
in
Psychology
0
votes
104
views
What is the Piaget's theory of development?
answered
Jan 14
in
Psychology
0
votes
129
views
Who is Edward Thorndike and what was his contribution to psychology?
answered
Jan 13
in
Psychology
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