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 DonnyBustama
Wall
Recent activity
All questions
All answers
Ask a Question
Answers by DonnyBustama
0
votes
27
views
How can the mechanical, thermal and flame-retardant properties of polymer-based composites be optimized to make them suitable for use in aerospace applications, such as aircraft interiors and structures?
answered
1 day
ago
in
Polymer Chemistry
0
votes
35
views
How can chemistry students with limited access to extracurricular activities still gain practical experience and develop their skills outside of classroom instruction?
answered
6 days
ago
in
Chemical education
0
votes
50
views
Calculate the enthalpy of formation of water (H2O) given the enthalpies of formation of hydrogen gas (H2) and oxygen gas (O2) are -286 kJ/mol and 0 kJ/mol, respectively.
answered
Jan 23
in
ThermoChemistry
0
votes
92
views
A chemistry student is studying the reaction between hydrogen gas and iodine gas to form hydrogen iodide gas. The student has collected data on the concentration of hydrogen and the rate of reaction at different times. Using the collected data, calculate the rate constant of the reaction between hydrogen and iodine gas.
answered
Jan 22
in
Chemical kinetics
0
votes
29
views
A chemical engineer needs to separate a mixture of ethanol and water using a distillation column. The feed to the column has 30 mol% ethanol and 70 mol% water, and the desired distillate composition is 95 mol% ethanol. The feed rate is 100 kmol/hour and the reflux ratio is 2. Calculate the number of theoretical trays required in the column to achieve the desired distillate composition.
answered
Jan 22
in
Chemical engineering
0
votes
38
views
How can social facilitation be used to promote pro-social behaviour?
answered
Jan 20
in
Psychology
0
votes
9
views
What is the gate control theory of acupuncture?
answered
Jan 16
in
Psychology
0
votes
18
views
Why is the attachment theory criticised?
answered
Jan 16
in
Psychology
0
votes
28
views
Who discovered that the andromeda nebula is over 2 million light years away
answered
Jan 8
in
Science
0
votes
26
views
What theory of evolution is charles darwin most known for?
answered
Jan 8
in
Science
0
votes
9
views
The right side of the heart collects what type of blood from the body?
answered
Jan 2
in
Science
0
votes
36
views
What begins when a neuron receives a chemical stimulus?
answered
Dec 28, 2024
in
Science
28.5k
questions
28.3k
answers
2
comments
4.7k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(6.0k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...