Across
- 3. A reaction where oxidation and reduction happen simultaneously
- 5. A chemical reaction triggered when light energy is absorbed by a substance's molecules
- 8. A type of decomposition reaction in which the activation energy for decomposition is provided in the form of electrical energy
- 10. A reaction where two compounds exchange their ions to form new compounds
- 11. A reaction where insoluble salts are formed
- 13. A reaction during which heat energy is absorbed
- 15. Coating metals with a protective layer of zinc to prevent corrosion
Down
- 1. The eating up of metals as a result of their exposure to air, moisture, and other gases in the atmoshpere
- 2. A reaction where a single substance decomposes to give two or more susbtance
- 4. A reaction where oxygen is gained or hydrogen is lost
- 6. A reaction where hydrogen is gained or oxygen is lost
- 7. A reaction where two or more substances combine to form a single susbtance
- 9. A reaction where one or a group of atoms of a compound is replaced by another atom or group of atoms
- 12. The oxidation of oils or fats in food resulting in bad taste and smell
- 13. A reaction during which heat energy is evolved
- 14. A substance that speeds up a chemical reaction