Therefore, it forms angular or bent molecules like water. Double bonds involve two pairs of electrons shared between 2 atoms. The energy input required to break a bond is called the bond energy . The covalent bonds formed by C are strong. Life on Earth is a carbon based system.
All biochemistry involves carbon compounds carrying specific functional groups.
These are atomic groupings that have characteristic physical properties and chemical reactivities regardless of their molecular location. Carbon can form chains with carbon atoms bonded together in linear forms . Carbon can also form branched chains and cyclical molecules . So hydrocarbons do not readily dissolve in aqueous solvents. Simple hydrocarbons are not very important in familiar biological chemistry.