A change that affects the appearance but not the chemical makeup of a substance. Generally reversible.
A uniform mixture of two or more substances that consists of solutes dissolved (a physical change) in a solvent.
The substance that changes its state to become dissolved in another substance (the solvent). Results in a solution.
The liquid that dissolves the solute. Results in a solution. Water is the most common solvent.
The random motion of molecules from an area of high concentration to an area of low concentration. Takes place through solid, liquid and gases.
A special type of diffusion where a solvent travels across a semipermeable membrane into areas of higher solute concentration.
Molecules that react with one another and are destroyed (in that form). They are placed on the left side of the arrow in a chemical equation.