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: Carbonic acid (H2CO3) is weak and unstabe since it can lose one proton to form bicarbonate anion (HCO3â) and lose a second to form carbonate anion (CO32â).Both Ka values are small.est Answer: Carbonic acid (H2CO3) is weak and unstabe since it can lose one proton to form bicarbonate anion (HCO3â) and lose a second to form carbonate anion (CO32â). Both Ka values are small.