Across
- 2. the starting substance in a chemical change
- 5. The type of displacement reaction where two compounds exchange ions.
- 6. Another term for a combination reaction, where simpler substances form a complex one.
- 8. The type of replacement reaction where one element replaces another in a compound.
- 11. the substance formed as a result of a chemical change
- 13. A factor often changed to alter the rate of a reaction.
- 14. the release of heat
- 16. Describes a solution where the solvent is water (chemical state symbol).
- 17. The fundamental process of chemical change.
- 19. A compound formed by the transfer of electrons between atoms, resulting in charged particles.
- 20. The rapid reaction of a substance with oxygen, producing heat and light.
Down
- 1. A substance that slows down a chemical reaction.
- 3. A substance that speeds up a reaction without being consumed itself.
- 4. A chemical equation where the number of atoms for each element is equal on both sides.
- 7. Another word for the displacement of one element by another.
- 9. Describes a reaction that absorbs heat energy from the surroundings.
- 10. A reaction where a single compound breaks down into two or more simpler substances.
- 12. The process of atoms rearranging to form new substances
- 15. The principle stating that mass is conserved in a closed system during a reaction.
- 18. The representation of a compound using chemical symbols (H₂O)