Molecules that have two covalent bonds are called dicatomic molecules. Some examples of diatomic molecules include:

- Hydrogen (H2): Consists of two hydrogen atoms bonded together by a single covalent bond.

- Oxygen (O2): Consists of two oxygen atoms bonded together by a double covalent bond.

- Nitrogen (N2): Consists of two nitrogen atoms bonded together by a triple covalent bond.

- Carbon monoxide (CO): Consists of one carbon atom and one oxygen atom bonded together by a double covalent bond.

- Nitric oxide (NO): Consists of one nitrogen atom and one oxygen atom bonded together by a triple covalent bond.

These diatomic molecules are stable due to the strong covalent bonds between their constituent atoms. The sharing of electrons between the atoms results in a lower energy state, making these molecules stable and resistant to dissociation.