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.
The comma is the punctuation mark most likely to cause angst. This is largely the result of the many different ways the comma is used. Sometimes, the comma indicates a pause that would occur if the sentence were spoken aloud. Other times, the comma separates grammatical components of the sentence. Finally, there are mechanical and stylistic uses of the comma that are simply conventional. The presence or absence of a comma can change the meaning of a sentenceâsometimes dramatically.