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.
Best Answer: Vinegar is not a pure substance and so has no chemical formula. Vinegar is mainly water (H2O), but makes vinegar acidic (and gives it its smell) is acetic acid, which has formula CH3COOH.Vinegar is usually only about 4-8% acetic acid.ating Newest Oldest. Best Answer: Vinegar is not a pure substance and so has no chemical formula. Vinegar is mainly water (H2O), but makes vinegar acidic (and gives it its smell) is acetic acid, which has formula CH3COOH. Vinegar is usually only about 4-8% acetic acid.