The amygdala is an almond-shaped structure deep in the brain that is believed to be a communications hub between the parts of the brain that process incoming sensory signals and the parts that interpret these signals. It can alert the rest of the brain that a threat is present and trigger a fear or anxiety response. The emotional memories stored in the central part of the amygdala may play a role in anxiety disorders involving very distinct fears, such as fears of dogs, spiders, or flying.
Chemical formula for vinegar. Vinegar is composed of about 5% acetic acid. This is the major chemical component of vinegar. The systematic or proper chemical name of acetic acid is ethanoic acid. Vinegar is a weak acid produced by the oxidation of alcohol (ethanol) from wines and ciders by bacteria. It has a pleasant sour taste and is used in cooking or as a condiment.
28,450 Contributions. The smell of vinegar from an old bottle of aspirin is an indication  that the active ingredient in aspirin, acetylsalicylic acid, has  decomposed. One of the products of the â¦ decomposition of aspirin is  acetic acid, which is the active ingredient in vinegar and what  smells. You should definitely not consume drugs that are past the  expiration date that have decomposed!