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 MarcellaR325
Recent activity
All questions
All answers
Ask a Question
Questions by MarcellaR325
0
votes
1
answer
85
views
How does the size and shape of a metallic nanoparticle affect its surface properties, such as reactivity with molecules, when analyzed using density functional theory calculations?
asked
Feb 24
in
Computational Chemistry
0
votes
1
answer
96
views
What is the effect of changing the concentration of reactants on the reaction rate and sustainability in the reaction between sodium thiosulfate and hydrochloric acid?
asked
Feb 22
in
Chemical kinetics
0
votes
1
answer
83
views
How do the physical properties (such as viscosity, conductivity, and solubility) of ionic liquids change with different cations and anions?
asked
Feb 22
in
Physical Chemistry
0
votes
1
answer
102
views
What is the activation energy for the decomposition of hydrogen peroxide in the presence of a catalyst at a specific temperature? How does the activation energy compare to the uncatalyzed reaction?
asked
Feb 17
in
Chemical kinetics
0
votes
1
answer
91
views
What is the activation energy for the acid-catalyzed hydrolysis of sucrose at 25°C?
asked
Feb 17
in
Chemical kinetics
0
votes
1
answer
190
views
What is the color of iron(III) chloride, FeCl3, in aqueous solution, and how does it change with increasing concentration?
asked
Feb 13
in
Inorganic Chemistry
0
votes
1
answer
80
views
How does insulin regulate glucose metabolism in the body and what are the molecular mechanisms involved in insulin signaling pathway?
asked
Feb 13
in
BioChemistry
0
votes
1
answer
121
views
How can we improve the photochemical stability and sensitivity of photosensitive materials used in black and white photography?
asked
Feb 13
in
PhotoChemistry
0
votes
1
answer
167
views
What are the electrical properties of graphene, and how can they be optimized for use in high-performance electronic devices?
asked
Feb 13
in
Materials Chemistry
0
votes
1
answer
140
views
How can the synthesis of polyethylene from ethylene monomer be optimized to produce a higher molecular weight polymer?
asked
Feb 11
in
Chemical synthesis
0
votes
1
answer
93
views
How can the chemical composition and formulation of a natural cosmetic product be optimized to ensure adequate shelf life and stability while maintaining its effectiveness and desirable sensory properties?
asked
Feb 6
in
Chemical engineering
0
votes
1
answer
107
views
Calculate the enthalpy of formation of NaCl(s) using the following information:1. The enthalpy change of formation of Na(g) is +108.5 kJ/mol.2. The enthalpy change of formation of Cl2(g) is 0 kJ/mol.3. The enthalpy change of vaporization of Na is +97.42 kJ/mol.4. The enthalpy change of dissociation of Cl2 is +242.76 kJ/mol.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
183
views
A container contains 2 moles of a gas at a pressure of 8 atm and a temperature of 300 K. Calculate the volume of the gas in each of the following thermodynamic ensembles: microcanonical, canonical, and grand canonical ensembles.
asked
Jan 22
in
Physical Chemistry
0
votes
1
answer
117
views
How many different isomers can be obtained from hexane (C6H14)? Provide the structural formula of each isomer.
asked
Jan 21
in
Organic Chemistry
0
votes
1
answer
58
views
Compare the influences of genetics and environment on temperament.
asked
Jan 20
in
Psychology
0
votes
1
answer
124
views
Please evaluate the social learning theory.
asked
Jan 20
in
Psychology
0
votes
1
answer
139
views
According to Lev Vygotsky's sociocultural theory, why is social interaction important for cognitive development?
asked
Jan 20
in
Psychology
0
votes
1
answer
54
views
Please compare the importance of stages versus processes in Erikson's theory versus George Vaillant's theory of adult development.
asked
Jan 17
in
Psychology
0
votes
1
answer
82
views
According to cognitive processing theory, what is the goal of cognitive therapy for PTSD?
asked
Jan 17
in
Psychology
0
votes
1
answer
79
views
According to the model of parallel processing, how is information processed in the visual system?
asked
Jan 17
in
Psychology
Page:
1
2
next »
37.4k
questions
37.2k
answers
2
comments
17.6k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(14.9k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...