Across
- 1. of times atoms appear before the arrom must be equal to the number of times atoms appear after the arrow.
- 5. reaction there is a net of absorption of energy.
- 7. appears as a result of a chemical.
- 8. of mass conservation: No atoms are gained or lost during any reaction.
- 9. energy is the amount of energy required to pull two bonded atoms apart.
Down
- 2. reaction there is a net release of energy.
- 3. equations must be BALANCED.
- 4. Energy is also called Bond Energy.
- 6. → Products