Across

5. the attraction between neighboring nonmetal and metal ions

6. new substance made in a chemical reaction

7. original substance in a chemical reaction

8. reactions that release energy

9. a substance that is a giant molecule made up of many similar small molecules linked together in a chain

 

Down

1. attractions between neighboring metal atoms

2. the minimum motion energy that reactant particles must have when they collide to break their chemical bonds

3. reactions that absorb energy

4. the attraction between specific pairs of atoms in a molecule