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0
votes
31
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What is the effect of temperature on the reaction rate and reaction yield of the reaction between hydrochloric acid and magnesium ribbon?
answered
Feb 20
in
Chemical kinetics
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21
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How does the addition of a catalyst affect the equilibrium position of a chemical reaction? Provide a detailed explanation with an example.
answered
Feb 17
in
Chemical equilibrium
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votes
31
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How do metal ions such as copper, zinc, and iron coordinate with amino acid residues in metalloproteins and enzymes to carry out important biological functions?
answered
Feb 13
in
Coordination Chemistry
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43
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What type of hybrid orbitals are present in methane (CH4)?
answered
Feb 13
in
Chemical bonding
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77
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How do the photochemical properties of enantiomers differ, and how does this affect their behavior when exposed to light? Provide examples of enantiomers and their differential photochemical behavior in natural and synthetic settings.
answered
Feb 13
in
PhotoChemistry
0
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58
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How can the swelling properties of polymer-based superabsorbent materials be optimized for better performance in applications such as agriculture or disposable hygiene products?
answered
Feb 11
in
Polymer Chemistry
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124
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What is the bond order of the O2 molecule according to its molecular orbital theory, and what are its paramagnetic or diamagnetic properties?
answered
Jan 30
in
Chemical bonding
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106
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What is the concentration of chloride ions (Cl-) in a sample of Tap Water using capillary electrophoresis?
answered
Jan 30
in
Analytical Chemistry
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73
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A student wants to calculate the corrosion rate of a zinc electrode in contact with a copper electrode, with a measured current of 0.5 amperes and a surface area of 2 cm². Given that the standard reduction potentials for copper and zinc electrodes are +0.34 V and -0.76 V, respectively, what is the corrosion rate of the zinc electrode in millimeters per year? (Assume a density of 7.14 g/cm³ for zinc and a Faraday constant of 96,500 coulombs per mole).
answered
Jan 22
in
ElectroChemistry
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95
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Which of the following synthesis methods would you use to prepare a symmetric ether with the molecular formula C4H10O: A) Williamson ether synthesis using sodium hydride and 1-bromobutaneB) Acid-catalyzed dehydration of 2-butanolC) Nucleophilic substitution of 1-chlorobutane with sodium ethoxideD) Ring-opening of an epoxide with ethylamineExplain your reasoning for choosing the method and provide the chemical equation for the reaction.
answered
Jan 21
in
Organic Chemistry
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30
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According to the social cognitive theory, what is the role of reinforcement in anxiety?
answered
Jan 17
in
Psychology
0
votes
47
views
When does the Cognitive Behavioural Therapy approach apply?
answered
Jan 15
in
Psychology
0
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32
views
Please compare and contrast the social-cognitive and trait perspectives on personality.
answered
Jan 15
in
Psychology
0
votes
112
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According to Kohlberg, when does the conventional level of moral reasoning occur?
answered
Jan 15
in
Psychology
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39
views
What is the importance of breaking the silence around mental health?
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Jan 14
in
Psychology
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31
views
What are the strengths of indigenous knowledge?
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Jan 14
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Psychology
0
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81
views
Who is the founder of the psychoanalytic theory?
answered
Jan 10
in
Psychology
0
votes
60
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Whether focused on ancient life, the life of bacteria, or how humans could live on the moon, four unifying principles form the basis of what branch of science?
answered
Jan 8
in
Science
0
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136
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What type of symmetry do echinoderms show?
answered
Jan 8
in
Science
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54
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What processes allow for the greatest range of rotation within the vertebral column and facilitate the movement of the head?
answered
Jan 7
in
Science
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