Across
- 2. An element of a compound is replaced by another element
- 3. Release of heat
- 5. Absorption of heat
- 7. Synonym of Combination reaction
- 8. Provide unpleasant odour to foods
- 9. Substance that changes in a reaction
- 11. Exchange of ions
- 12. Multiple reactants and a single product
- 13. Addition of oxygen
- 14. Chemical reaction expressed in words
Down
- 1. Single reactant and multiple products
- 4. Symbolic representation of a chemical reaction
- 6. Substance that speeds up a reaction
- 9. Removal of oxygen
- 10. Gradual deterioration of materials