Across
- 7. can be between a metal and a nonmetal
- 9. mixture of two or more pure substances
- 11. non-reversible or the composition does change
- 13. example would be neon
- 14. reversible or the composition does not change
- 18. a group of atoms that has become electrically charged
- 19. a prefix or latin name
- 20. releases heat
- 21. a chemical reaction when oxygen reacts with a substance
- 22. a substance that reacts with another substance
Down
- 1. gas to liquid
- 2. sodium, potassium, rubidium, caesium, francium.
- 3. insulator and ductile
- 4. example would be copper
- 5. absorbs heat
- 6. non reactive metal
- 8. slow chemical change
- 10. found in living and nonliving things
- 11. a chemical reaction that takes place in your body.
- 12. helps break down food (organic)
- 15. liquid to gas
- 16. a thing that is composed of two or more separate elements; a mixture.
- 17. a new substance produced produced in a chemical reaction
- 23. anything on the periodic table