Similarly, the muscles that maintain our posture contract and relax in a synchronized fashion. If the spasm is forceful and sustained, it becomes a cramp. A muscle cramp is an involuntarily and forcibly contracted muscle that does not relax. Muscle cramps cause a visible or palpable hardening of the involved muscle. Muscle cramps can last anywhere from a few seconds to a quarter of an hour or occasionally longer.
CH3COOH is the chemical formula for acetic acid (vinegar). It is also called ethanoic acid. It is considered to be a weak acid as it is only a partially dissociated acid in water.
impure dilute acetic acid Chemical NAME: Ethanoic acid, (also, but trivially: acetic acid) Chemical FORMULA: CH3COOH But actually vinegar is not a chemical, it is a solu â¦ tion of-among others-acetic acid. + 22 others found this useful.Greg McLucas. The Periodic Table of Elements Life is sustained by a number of chemical elements. 2  They are responsible for the birth of planets and the evolution of cells to complex organisms.