What is an ionic solid? The opposite chargers are held together by using electrostatic attraction. Water separates the attraction between ions in an ionic solid by replacing the water molecules and ions. The positive end of the water molecule attracts the negative end of the ionic solid.  The negative end of a water molecule attracts the positive end of the ionic solid. Water molecule separates the ionic solid.   Water molecule dissociates the ionic solid. Ions are surrounded by solvent molecules. Ions are solvated. Water is functions as a solvent in ionic compounds.  There are two kinds of ionic solids The ionic compound dissolves in Water The ionic compound does not dissolve in Water The Ionic compound dissolves in Water The electrostatic attraction between the ions in an ionic solid is lesser than compared with the attraction between the ions and water molecules. It is called a soluble substance. The Ionic compound does not dissolve in Water The electrostat...

  The covalent compounds can dissolve in water but do not dissociate into ions. Therefore they are staying without reacting. These Covalent compounds are called intact molecules. Ions can react with other ions.  We can consider some of the covalent compounds such as Sucrose (C12H22O11), which is called Table sugar, ethanol (CH3CH2OH), and ethylene glycol (HOCH2CH2OH). These Covalent compounds have polar O-H bonds that interact with water and dissolve.  Covalent compound aqueous solutions can not conduct electric current because there are no ions in them. Therefore these are called nonelectrolytes.  Some of the covalent compounds do not have O-H bonds, so these do not dissolve in water. The example for these covalent compounds is Benzene (C6H6), and octane(C8H18), which do not have O-H bonds. Some of the covalent compounds contain the H group, which strongly reacts with water, and these covalent compounds dissociate to make ions. These substances are acids. ...