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Q: In living systems molecules involved in hydrogen bonding almost always contain either oxygen or nitrogen or both. How do you explain this phenomenon?
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Hydrogen bonds are formed between molecules when hydrogen is covalently bonded to an element that has a?

Hydrogen bonding can occur when either Nitrogen, Oxygen, or Florine is involved.


Are not molecules?

Oxygen, hydrogen , nitrogen atoms etc. are not molecules .


Molecules of hydrogen escape from earth but molecules of oxygen and nitrogen are held to the surface why?

Molecules of Hydrogen are less dense than oxygen and nitrogen so gravity keeps the oxygen and nitrogen inside the atmosphere.


Is hydrogen and nitrogen the most polar?

These molecules are similar.


Oxygen nitrogen and fluorine bond with hydrogen to form molecules These molecules are attracted to each other by?

hydrogen bonds!


What molecules is made up of nitrogen and hydrogen?

Ammonia is NH3. This means it has one nitrogen atom and three hydrogen atoms.


Hydrogen bonding occurs in molecules where hydrogen is bonded to what elements fluorine carbon oxygen nitrogen hydrogen boron?

the hydrogen bonding is possible in oxygen, nitrogen,and fluorine


Are Hydrogen Nitrogen Oxygen and the Halogens diatomic molecules?

Yes


Nitrogen gas consists of what?

Nitrogen is composed of molecules each containing two nitrogen atoms


A hydrogen bond forms between molecules that contain hydrogen bonded to?

Nitrogen, Oxygen and Fluorine


One nitrogen molecule reacts with three hydrogen molecules to produce two ammonia molecules each containing one nitrogen and three hydrogen atoms?

One ammonia molecule will be produced.


What atoms are proteins made up of?

Proteins contain carbon, hydrogen, oxygen, nitrogen and sometimes sulfur or selenium.