Sammi+Stoltzfus

Do only certain molecules bond together? Such as an oxygen molecule and a hydrogen molecule? Or can any amount and type of molecules bond?

Yes. Molecules bond together to become more stable and become more like a noble gas. If bonding two molecules together doesn't make the compound more stable then the molecules do not bond, like if you have two hydrogens. Any amount of molecules cannot bond together because there is a limited amount available. Certain types of molecules do not bond together like two hydrogens if it does not make the compound more stable.

-Niki