Thus when water molecules are close together, their positive and negative regions are attracted to the oppositely-charged regions of nearby molecules. The force of attraction, shown here as a dotted line, is called a hydrogen bond. The energy required to break multiple hydrogen bonds causes water to have a high heat of vaporization; that is, a large amount of energy is needed to convert liquid water, where the molecules are attracted through their hydrogen bonds, to water vapor, where they are not.
âangstâ: synonyms and related words: 1  agitation. 2  alarm. 3  anxiety. 4  apprehension. 5  consternation. 6  discomfit. 7  discomfort. 8  misgiving. 9  nerve. 10  oppression. 11  overwork. 12  panic attack. 13  perturbation. 14  preoccupation. 15  restive. 16  strain. 17  tizzy. 18  trepidation. 19  uneasiness. 20  vexation.
Pronounced (peZZimistic). Notice the starting is pronounced like the candy dispensers called 'Pez'. Most people pronounce this word wrong. It is the opposite of optimistic. Pessimistic is defined as expecting the worst in this worst of all possible worlds.