Login
Remember
Register
Science Q&A Sarvan.Net
All Activity
Q&A
Questions
Hot!
Unanswered
Tags
Categories
Users
Ask a Question
About Us
XML Sitemap
Terms of Service
User Hanna191905
Wall
Recent activity
All questions
All answers
Ask a Question
Questions by Hanna191905
0
votes
1
answer
15
views
What is the step-wise mechanism for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas via the intermediate formation of 2,4-dichloronitrobenzene? Include the structures of all intermediate and final products.
asked
3 days
ago
in
Chemical synthesis
0
votes
1
answer
21
views
How does the coordination environment of metal ion in metalloenzymes affect their catalytic activity? Provide an example from the literature and discuss the implications for understanding enzyme function.
asked
6 days
ago
in
Coordination Chemistry
0
votes
1
answer
29
views
What is the relationship between the chemical shift and the electron density in a sample analyzed by nuclear magnetic resonance (NMR) spectroscopy, and how can this information be used to determine the purity and structure of an organic compound?
asked
6 days
ago
in
Physical Chemistry
0
votes
1
answer
29
views
How does the carbon footprint of different industries (such as transportation, electricity generation, and agriculture) affect the concentration of greenhouse gases in the atmosphere and contribute to climate change?
asked
Feb 18
in
Environmental Chemistry
0
votes
1
answer
34
views
What are the key photochemical properties of commonly used photovoltaic materials and how do these properties affect the efficiency of solar cells?
asked
Feb 14
in
PhotoChemistry
0
votes
1
answer
24
views
How do metalloenzymes and metalloproteins interact with metal ions in the coordination sphere and what are the factors that influence their reactivity?
asked
Feb 13
in
Coordination Chemistry
0
votes
1
answer
38
views
What is the predicted acidity or basicity of the molecule HCOOH? Provide a detailed explanation and justify your answer using relevant chemical principles.
asked
Feb 13
in
Chemical bonding
0
votes
1
answer
3
views
How can we design a medication to treat Alzheimer's disease by targeting the enzyme acetylcholinesterase?
asked
Feb 12
in
Medicinal Chemistry
0
votes
1
answer
41
views
How can the stability of an emulsion be affected by factors such as temperature, pH, and the addition of emulsifiers, and what are the mechanisms behind these effects?
asked
Feb 10
in
Surface Chemistry
0
votes
1
answer
31
views
How can the mechanical properties of polymer-based composites be optimized for aerospace applications through the controlled addition of nanoparticles?
asked
Feb 10
in
Polymer Chemistry
0
votes
1
answer
47
views
How can the mechanical properties (such as tensile strength, elongation, and hardness) of polyurethane be optimized by controlling the reaction parameters in the synthesis process using different diisocyanate and polyol combinations?
asked
Feb 10
in
Chemical synthesis
0
votes
1
answer
29
views
How can the mechanical and biocompatible properties of polymer-based biomaterials for tissue engineering be optimized to mimic the native tissues of the human body?
asked
Feb 7
in
Polymer Chemistry
0
votes
1
answer
35
views
Calculate the standard electrode potential for the redox reaction: Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s)if the standard electrode potentials for Zn2+/Zn and Cu2+/Cu half-cells are -0.76V and +0.34V, respectively.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
75
views
What is the effect of catalyst on the activation energy and rate of a chemical reaction? Provide an example of a catalytic reaction and explain how the catalyst works to increase the rate of the reaction.
asked
Jan 30
in
Physical Chemistry
0
votes
1
answer
87
views
What is the product formed when propene reacts with sulfuric acid followed by water in an electrophilic addition reaction?
asked
Jan 21
in
Organic Chemistry
0
votes
1
answer
51
views
According to Piaget's cognitive development theory, what are the four stages of cognitive development?
asked
Jan 20
in
Psychology
0
votes
1
answer
55
views
What is the name of the experiment that looked at obedience to authority?
asked
Jan 20
in
Psychology
0
votes
1
answer
33
views
What is the methodological criticism of perceptual illusions?
asked
Jan 20
in
Psychology
0
votes
1
answer
51
views
Compare the potential benefits and risks of cognitive enhancers such as modafinil and methylphenidate.
asked
Jan 16
in
Psychology
0
votes
1
answer
11
views
When evaluating the parsimony of a theory, what should be considered?
asked
Jan 16
in
Psychology
Page:
1
2
next »
35.6k
questions
35.5k
answers
2
comments
7.0k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(13.1k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...