Nonpolar covalent bonds are formed when two atoms share electrons equally. This type of bond is typically found between two atoms of the same element, such as in the molecule H2, or between two different elements that have similar electronegativities, such as in the molecule CH4.

Here are some examples of molecules that contain nonpolar covalent bonds:

* Hydrogen (H2)

* Oxygen (O2)

* Nitrogen (N2)

* Methane (CH4)

* Ethane (C2H6)

* Propane (C3H8)

* Butane (C4H10)

* Pentane (C5H12)

* Hexane (C6H14)