User talk:101.173.198.247

Non dissolving molecules:
The last sentence in the third paragraph needs improvement - "If the substance lacks the ability to dissolve in water the molecules form a precipitate.". This sentence is not strictly correct as many non-polar "substances" (like oils for instance) do not dissolve in water but these are not considered a precipitate. Many emulsions (like milk for instance) have substances that are not 'dissolved' in water although I wouldn't call these substances a chemical precipitate. In my mind a chemical precipitate refers to a solid particle (one that is large enough to scatter light - this helps distinguish it from a dissolved particle), and that has been created in the water because the water has becomes saturated with the ions that form the precipitate. BluesLewis (talk) 06:35, 20 June 2016 (UTC)