by Ron Kurtus
You can read them to further your understanding of the subject.
|Polar Molecules||Which molecule is more polar than the other?||India|
|General||Send me notes and questions||Malawi|
|General||Temperature and organic molecules||South Africa|
|Mixture Types||What is a solution?||Pakistan|
|Oxygen||Why are solid and liquid oxygen blue?||Nepal|
|Isotopes||Can there be more protons than neutrons in a nucleus?||Ghana|
|Mixture Types||Is polluted water a suspension or solution?||Japan|
|Polar Molecules||Which is more polar water or alcohol?||USA|
August 16, 2015
How can I use hydrogen?
alpesh - India
You can use as well as create hydrogen in chemical reactions. It was once used in balloons but proved to be dangerous, because it it inflammable.
Topic: Hydrocarbon Bonding
July 16, 2015
Can 80% Propane be bonded with 20% Ethane to be fused together to be near azeotropic
Charles - Australia
I'm sorry, but I don't have that information.
Which molecule is more polar than the other?
Topic: Polar Molecules
June 16, 2015
How Do we know which molecule is more polar than the other? I Didn't not understand it completely.
Rohan - India
The configuration of the atoms in a molecule determine whether it is polar, such that one side has more positive charges and the other more negative. However, it is not easy to determine the configuration. In some cases, you can verify there are more charges on one side as compared to a different molecule.
The web page Molecular polarity gives some good information on the subject.
Send me notes and questions
May 23, 2015
i want u guyz to send me note and questions so that i can answer them all
Alfred - Malawi
The best thing to do is to go through the Chemistry lessons and try to answer the Mini-Quiz questions.
Temperature and organic molecules
May 20, 2015
What is the relationship between temperature and the properties of organic molecules?
Banele - South Africa
Temperature can determine whether organic molecules are as a gas, liquid, or solid. Also, at certain temperatures, the chemical reactions may occur with other materials. For example, wood will burn or oxidize when the temperature is high enough.
What is a solution?
Topic: Mixture Types
May 9, 2015
What is solution
See Chemical Solutions for an explanation.
Why are solid and liquid oxygen blue?
April 4, 2015
Although oxygen gas is colorless, why the liquid and solid forms of oxygen are blue?
Dilip - Nepal
The blue color of a material like solid or liquid oxygen comes from blue wavelengths being selectively reflected from the material. Since the molecules of oxygen gas are so widely spread apart, you don't see the color under ordinary conditions. However, when you look into the sky, the layer of oxygen is very thick and the blue wavelengths are reflected to the Earth.
Can there be more protons than neutrons in a nucleus?
March 1, 2015
Pls can the number of protons be more than the number of neutons in a particular nucleus?
Umar - Ghana
There are only two stable atoms or isotopes with more protons than neutrons.Hydrogen only has 1 proton and no neutrons. The Helium-3 isotope has 2 protons and 1 neutron.
There are other isotope with more protons than neutrons--such as Lithium-4 and Carbon-8--but they are unstable and radioactive, such that they decay into a stable form.
Is polluted water a suspension or solution?
Topic: Mixture Types
February 24, 2015
IS POLLUTED WATER A COLLOID SUSPENSION OR A SOLUTION I NEED TO KNOW I HAVE A TEST SOON PLEASE HELP
nekopockygurl - Japan
The causes of polluted water can be complex.
Usually polluted water is a mixture of dirty material. Some chemicals can dissolve in the water to make the pollution a solution. Materials in the water that could create a colloid suspension would consist of particles that do not settle.
Which is more polar water or alcohol?
Topic: Polar Molecules
February 22, 2015
which is more polar water or alcohol? or are they same
Water is more polar because it has opposite signs on both the ends. Also, water doesn't have the non-polar carbon-carbon bonds.
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