Which has covalent bonds

Covalent Bond Examples

Each of the covalent bonds contains two electrons, one from a hydrogen atom and one from the oxygen atom. Both atoms share the electrons. A hydrogen molecule, H2, consists of two hydrogen atoms joined by a covalent bond.

Covalent bonds are commonly found in carbon-based organic molecules, such as our DNA and proteins. Covalent bonds are also found in inorganic molecules like H2O, CO2, and O2. One, two, or three pairs of electrons may be shared, making single, double, and triple bonds, respectively.

3. dark matter

empty space could also be a simple vacuum