Across
- 1. When energy is transferred to surroundings
- 5. Process that leads to chemical transformation
- 8. A reaction between substances
- 9. A form of matter
- 13. Involves a transfer of electrons between two species
- 14. Reaction where reactant ions change places
- 17. Chemical species breaking into smaller parts
- 18. Substance that changes in a chemical reaction
Down
- 2. When heat is absorbed from its surroundings
- 3. A protein that speeds up chemical reactions
- 4. Reaction where one element is substituted for another
- 6. Molecule that contains at least one unpaired electron
- 7. A representation using symbols
- 10. When two different atoms interact, forming a different compound
- 11. Substance that increases the rate of a reaction
- 12. Substances produced at the end of the reaction
- 15. process by which electric currents are used
- 16. A conversion factor between compounds in a chemical reaction