Bond breaking is an endothermic process. The opposite is true if we want to make new bonds. Energy is released when new chemical bonds are formed, so bond making is an exothermic process.

B oron, carbon, nitrogen and oxygen: these four elements can form chemical triple bonds with each other due to their similar ...

The reaction provides a potential method of fixing atmospheric carbon dioxide and producing valuable chemical products ... which have acidic C–H bonds. So far, 20 examples of aromatic substrates ...