Answer to Question #109546 in Chemistry for aline

Question

what dissolves most rapidly in 100 mL water

Answer 1

The dissolving of a solid by water depends upon the collisions that occur between the solvent molecules and the particles in the solid crystal. Anything that can be done to increase the frequency of those collisions and/or to give those collisions more energy will increase the rate of dissolving. The rate of dissolving depends on the surface area (solute in solid state), temperature and amount of stirring. 

Ionic compounds (salts) dissolve in water. It depends on the type of salt (AgCl vs. NaCl, for example), temperature, and the common ion effect. Refer to ..(https://en.wikipedia.org/wiki/Solubility#Solubility_of_ionic_compounds_in_water )

Non-polar substances dissolve in other non-polar substances, but not in polar ones. The opposite is also true. Polar substances dissolve in other polar substances, but not in non-polar.

Liquids can dissolve in other liquids. When a liquid dissolves easily in another liquid, such as ethanol and water, they are said to be miscible. When a liquid does not dissolve easily in another liquid, such as oil and water, it is said to be immiscible.

The solubility of a gas in a solvent is directly proportional to the partial pressure of that gas above the solvent.