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Answers by KenOlvera57
0
votes
22
views
How does the presence of surfactants in detergents affect the surface tension of water and its ability to remove dirt and stains from clothes?
answered
3 days
ago
in
Surface Chemistry
0
votes
21
views
What is the enthalpy change for the oxidation of 1 mole of ethanol to acetic acid? Given the following balanced chemical equation for the reaction: C2H5OH + 2O2 → 2CO2 + 3H2O ∆H = -1367 kJ/mol.
answered
5 days
ago
in
ThermoChemistry
0
votes
24
views
How does surface modification of nanoparticles affect their reactivity and stability in various chemical reactions? Please provide specific examples and supporting evidence from recent research studies.
answered
Feb 17
in
Surface Chemistry
0
votes
29
views
What is the crystal structure of sodium chloride (NaCl) and how does it form?
answered
Feb 14
in
Physical Chemistry
0
votes
40
views
What is the oxidation number of carbon in CH3OH in a redox reaction where it is reacting with K2Cr2O7 (potassium dichromate) in acidic medium?
answered
Feb 13
in
Chemical reactions
0
votes
42
views
What are the predominant intermolecular forces present in a sample of water and how do they contribute to its unique properties?
answered
Feb 13
in
Chemical bonding
0
votes
34
views
How can the purification process of a chemical be optimized to achieve a high product yield without compromising the quality of the final product?
answered
Feb 10
in
Chemical engineering
0
votes
33
views
How can the manufacturing process for a specific polymer be optimized to improve its strength and durability without compromising its other properties?
answered
Feb 7
in
Polymer Chemistry
0
votes
9
views
How can chemistry teachers spark interest in the subject among students who perceive it as difficult and uninteresting?
answered
Feb 5
in
Chemical education
0
votes
46
views
Calculate the standard enthalpy change for the vaporization of 25.0 grams of water at 100°C, given that the molar enthalpy of vaporization of water is 40.7 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
81
views
What is the effect of adding a catalyst, specifically platinum, on the equilibrium position of the redox reaction between iodine and thiosulfate? Calculate the new equilibrium constant and explain the observed changes in the reaction rate and yield.
answered
Jan 30
in
Chemical equilibrium
0
votes
63
views
What is the exact mechanism through which acid rain changes the pH of soil and water bodies, and what is its impact on aquatic organisms and agricultural productivity?
answered
Jan 30
in
Environmental Chemistry
0
votes
64
views
Calculate the enthalpy change of isomerization for the conversion of n-butane to isobutane if the heat of combustion of n-butane is -2657.5 kJ/mol and the heat of combustion of isobutane is -2878.8 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
40
views
What is the theory of multiple determinants of intelligence?
answered
Jan 20
in
Psychology
0
votes
53
views
Where is acceptance and commitment therapy ACT used in clinical psychology?
answered
Jan 16
in
Psychology
0
votes
33
views
Where did Bandura's Social Learning Theory originate?
answered
Jan 15
in
Psychology
0
votes
41
views
What is the intrasexual competition hypothesis?
answered
Jan 15
in
Psychology
0
votes
31
views
What is the definition of stereotypes?
answered
Jan 15
in
Psychology
0
votes
51
views
What is the definition of personality?
answered
Jan 14
in
Psychology
0
votes
49
views
Which is the most common sti (sexually transmitted infection) in the united states?
answered
Jan 8
in
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