Across
- 3. term used to describe oxisides organic materials (usually food)
- 4. most gas found in air composition
- 7. a substance that oxidises another substance during a redox reaction and it self reduced during the reaction (9 letter, 5 letters))
- 9. chemical reaction in which a substance reacts with oxygen (exothermic reactions)
- 10. element that has symbol C (6 letters)
Down
- 1. chemical reaction by which biological cells release the energy stored in glucose for use by the cell
- 2. fossil fuel formed from the remains of ancient marine plants/animals that can be used as fuel for transportations
- 5. reaction in which oxygen is added to an element/compound
- 6. reaction involving both reduction and oxidation
- 8. missing electron during redox reaction (4 letters)