Across
- 4. A color change is one of the indicators that a _____ has occured.
- 7. AB + oxygen ---> oxides of A & B + H2O
- 8. Law stating that there are no atoms gained or lost during any reaction.
- 9. AB + CD ---> AD + CB
- 10. A reaction with a net gain of energy.
- 11. A reaction with a net release of energy.
Down
- 1. A + B ---> AB
- 2. A + BC ---> AC + B
- 3. AB ---> A + B
- 5. Chemical equations must always be _____.
- 6. The amount of energy required to pull two bonded elements apart.