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.
Public trust. For the New Zealand crown entity, see Public Trust (New Zealand). The concept of the public trust relates back to the origins of democratic government and its seminal idea that within the public lies the true power and future of a society; therefore, whatever trust the public places in its officials must be respected.