Collection Screen Savers Win Wallpaper Mac Wallpaper Movie Gallery Chemical Crystals Chemical compounds can exist in three basic phases, gaseous, liquid, or solid. Gases consist of weakly bonded atoms and expand to fill any available space. Solids are characterized by strong atomic bonding and have a rigid shape. Most are crystalline, having a three-dimensional periodic atomic arrangement. Some, such as glass, lack this periodic arrangement and are noncrystalline, or amorphous.
Liquids have characteristics that fall in between gases and solids.
This cinemicrographic collection shows time-lapse movies of various chemical compounds as they change physical states. Acetaminophen - Tylenol is one of over 100 brand names of the analgesic acetaminophen that acts quickly and safely to provide temporary relief of minor headaches, minor muscular aches, overexertion, menstrual cramps, and many other ailments. Acetic Acid - Vinegar is the most commonly known form of this carboxylic acid, produced by the fermentation and oxidation of natural carbohydrates. It occurs naturally in body fluids and plant juices and is an important metabolic intermediate in biological systems. Acetylcholine - Acetylcholine is a neurotransmitter that is responsible for gated binding control of cation channels to allow inflow of sodium into muscle cells.