A polar molecule is when the arrangement of the atoms in molecules are unequal where one end of the molecule has a positive charge while the other end has a negative charge. Examples of a polar molecule are water, ammonia, hydrogen sulfide and sulfur dioxide. The opposite is called a nonpolar molecule.
I’m don’t kill me if I’m wrong but I think it’s high melting point
22 is a
23 is d
24 is c
I believe the answers are correct.
Answer:
Due to the lack of context for your question I’m not completely sure which you are talking about but NH can be Imidogen or it could be ammonium which is NH4^1+
It is by looking on the dates of the paper.
Hoped this helped.
~Bob Ross®