There are two types of fiber -- "soluble," if it dissolves in water, and "insoluble," if it doesn't. Soluble fiber absorbs water and turns into gel, which slows down digestion, helps you feel full ...

Salts - Edexcel Soluble salts can be made by reacting acids with soluble or insoluble reactants. Titration must be used if the reactants are soluble. Insoluble salts are made by precipitation ...