Across
- 3. AB+CD->AD+CB
- 5. AB+oxygen->oxides of A and B
- 8. AB-> a+b
- 9. the energy store from reactants to surroundings in molecules that can be released during a reaction
- 10. must be added to break bonds
- 11. a substance that undergoes a chemical change
Down
- 1. a+b->AB
- 2. energy is transferred to reactants from surroundings
- 4. AB+C->AC+B
- 6. energy transfers from reactants to surroundings
- 7. a substance that is the result of the chemical change