Why is soluble not soluble in water?

Answer 1

Some substance cant dissolve in water because they do not create hydrogen bonds with water molecules.

It is very important for the substance to make hydrogen bondis with water molecules in order to dissolve.

e.g. gasoline wont dissolve in water because it doesn't have a highly electronegative atom to react with posively charged hydrogen of water molecule.

The polarity of the water molecule allows it to dissolve certain substances easily but not others which resist the "efforts" of water molecules to "wedge" themselves between the substance's molecules.

Answer 2

because of the presence of non-polar group that is benzene ring,the solubility in water decreases though it has hydrogen bonding.

Answer 3

I or Iodine is slightly soluble in water.

Check out product information sheet link below

Answer 4

Nonpolar substances are unable to dissolve in water, which is polar.

Answer 5

it is. why do you think fish have gills?