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.
H2CO3 is carbonic acid. It is a central Carbon atom with one oxygen double bonded to the carbon and two single oxygen's covalently bonded to the carbon. The two oxygens with t â¦ he single bonds have the hydrogens bonded as well.arbonic acid is a weak acid, and so you might think that there would be nonionized H2CO3 molecules. That simply isn't the case. H2CO3 molecules don't exist in water. (H2CO3 molecules are thought to exist in interstellar space, but not on Earth, and not in water.).