Across
- 4. what kind of reaction has a net absorption
- 7. waht type of reaction gives off light and heat
- 8. atoms simply change _______ to form new material
- 9. reactants create what
Down
- 1. heat or light is given off
- 2. _______states that no atoms are gained or lost during any reaction
- 3. what is another word for activation energy
- 4. what kind of reaction has a net release
- 5. during a chemical reaction one or more new ________ are formed
- 6. when balancing the elements you need to follow the balancing________