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Answers by GeraldoSuffo
0
votes
25
views
How does the rate of reaction vary with changes in the concentration of reactants and products in a given reaction mechanism?
answered
5 days
ago
in
Chemical kinetics
0
votes
22
views
What would be the effect on the equilibrium constant (Kc) for a reaction if the temperature is increased from 25°C to 35°C? Provide reasons for the observed effect based on Le Chatelier's Principle.
answered
Feb 19
in
Chemical equilibrium
0
votes
24
views
What is the critical micelle concentration (CMC) of sodium dodecyl sulfate (SDS) in water at room temperature and how does it vary with salt concentration?
answered
Feb 19
in
Surface Chemistry
0
votes
20
views
How does the addition of clay nanoparticles affect the mechanical properties of a polymer matrix in a polymer nanocomposite?
answered
Feb 17
in
Polymer Chemistry
0
votes
33
views
How does the addition of antioxidants affect the degradation and stability of high-density polyethylene (HDPE) under various environmental conditions?
answered
Feb 17
in
Polymer Chemistry
0
votes
33
views
What is the acidity or basicity (pH) of sulfuric acid (H2SO4)? Show the balanced equation for the dissociation of H2SO4 and calculate the concentration of hydrogen ions (H+) in a 0.1M solution of sulfuric acid.
answered
Feb 14
in
Chemical bonding
0
votes
34
views
What is the corrosion potential of a zinc electrode in a galvanic couple with a copper electrode, given that the standard reduction potentials of the two half-reactions are +0.34V for Cu²⁺/Cu and -0.76V for Zn²⁺/Zn?
answered
Feb 13
in
ElectroChemistry
0
votes
42
views
How can a chemist develop a process for the efficient production of 1,4-dioxane, a key intermediate in the production of polymers and solvents, using the principles of chemical engineering? Consider factors such as reaction conditions, catalyst selection, and process optimization to maximize yield and minimize waste.
answered
Feb 4
in
Chemical engineering
0
votes
34
views
Calculate the standard enthalpy change of the following chemical reaction at 298 K given the following bond energies: 2H2(g) + O2(g) --> 2H2O(l) Bond energies: H-H: 432 kJ/mol O=O: 498 kJ/mol O-H: 464 kJ/mol
answered
Feb 3
in
Physical Chemistry
0
votes
67
views
What is the difference between alkenes and alkynes in terms of their chemical structure and properties?
answered
Jan 31
in
Organic Chemistry
0
votes
23
views
What brain region is associated with relapse during addiction recovery?
answered
Jan 20
in
Psychology
0
votes
37
views
Why is the humanistic approach significant in understanding self-concept?
answered
Jan 20
in
Psychology
0
votes
69
views
Please compare the onset and maintenance of depression.
answered
Jan 20
in
Psychology
0
votes
29
views
What are the similarities and differences between bipolar disorder and major depressive disorder?
answered
Jan 17
in
Psychology
0
votes
11
views
What is a conceptual framework in psychology research?
answered
Jan 17
in
Psychology
0
votes
44
views
How does the parental model of eating disorders contribute to their evaluation?
answered
Jan 16
in
Psychology
0
votes
35
views
When evaluating the theories of attraction, what is the investment model?
answered
Jan 16
in
Psychology
0
votes
45
views
According to the time sampling method, what type of data is collected?
answered
Jan 15
in
Psychology
0
votes
43
views
What is Erikson's theory of psychosocial development?
answered
Jan 14
in
Psychology
0
votes
46
views
What is the meaning-centered approach?
answered
Jan 13
in
Psychology
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