For questions about chemical bonds (ionic/covalent/etc.), their properties (length, energy, angle, etc.) or their relation to other molecular properties (intermolecular forces/dipole moment/etc.). Do not confuse this tag with [lewis-structures], [dipole], [intermolecules-forces], etc.
A chemical bond is an interaction between atoms which results in the release of energy. It is one of the most fundamental concepts of chemistry. Existing bonds are broken and new bonds are formed in chemical reactions.