Across
- 2. A chemical change with the release of heat
- 4. Displacement A reaction involving exchange of ions between two compounds
- 7. Equation The symbolic representation of a chemical reaction
- 10. The chemical used to test the presence of carbon dioxide
- 11. The brown coating formed on iron due to corrosion
- 12. Substance that speeds up a chemical reaction without being consumed
- 13. Removal of oxygen or addition of hydrogen to a substance
- 14. Reaction involving addition of oxygen or removal of hydrogen
- 15. Reaction where two or more substances combine to form a single product
Down
- 1. An insoluble solid formed during a double displacement reaction
- 3. Reaction where a more reactive element displaces a less reactive one
- 5. Reaction absorbing heat from surroundings
- 6. Formation of a solid during a chemical reaction in solution
- 8. The process of a substance combining with oxygen to release heat and light
- 9. Reaction where a compound breaks down into two or more substances