Across
- 4. One of the evidences of a chemical reaction that can be smelled.
- 8. New substances formed in a chemical reaction.
- 10. One of the evidences of a chemical reaction that can be seen.
- 12. Solid deposit in a solution.
- 13. Substances that participate in a chemical reaction.
Down
- 1. A chemical reaction that requires heat.
- 2. A chemical reaction in which heat is released to the surroundings.
- 3. The change that always produces a new substance.
- 5. The change that is reversible.
- 6. Formation of gas.
- 7. In a chemical reaction mass is neither ... nor ...
- 9. In a chemical reaction mass is neither ... nor ...
- 11. The scientist who stated The Law of Conservation of Mass.