Covalent interactions (bonds) hold atoms together within molecules. Covalent bonds are strong, with enthalpies are on the order of 100 kcal/mole (400 kjoule/mole). Covalent bonds break during chemical reactions, as during the burning of paper.
Public bodies reports. Public bodies 2014 provides a directory of data on non-departmental public bodies (. ), executive agencies and non-ministerial departments (NMDs), as well as summary information on the size and expenditure of these bodies and information on public appointments.
A public officer is ordinarily defined as an individual who has been elected or appointed to exercise the functions of an office for the benefit of the public. Executive officers, such as the president or state governors, are public officers charged with the duty to ascertain that the law is enforced and obeyed.