Fact 1: Chemical bonds form when substances react with one another.

Fact 2: All substances are composed of molecules.

Given the two facts above, answer the question "What forms when molecules react with one another?" with the following options: 
- biochemistry
 - Chemical energy
 - Energy.
 - atoms
 - chemical bonds
 - elements
 - flow of electrons
 - Organic compounds


 

     chemical bonds    