The rate of dissolution of a solid solute into the solution decreases when you stop stirring it. Generally, stirring increases the dissolution rate of a solid into a solution. An example is coffee with sugar, the sugar dissolves faster when stirred versus when left to dissolve on its own.
Sodium chloride is the chemical name for salt and is composed of sodium and chlorine, so it is a compound.
They have different ratios of elements. Water is H20 and Hydrogen Peroxide is H202. The extra oxygen atom in hydrogen peroxide causes it to be structured and react differently.
They will attract. Have you ever heard of the saying "Opposites attract". When you have the same forces they will repel. Hope this was what your looking for. :)
