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: 
- Chemical energy
 - substrates
 - chemical bonds
 - living things
 - Organic compounds
 - Energy.
 - new elements
 - flow of electrons


 

   chemical bonds      