Across
- 3. neutral ion
- 4. electric ions
- 6. not a metal
- 8. Manufactured substance
- 9. table of elements
- 10. the amount something reacts
- 11. absorbs light
- 14. opposite of physical change
- 15. element replaced by a compound
- 18. the problem
- 19. amount of matter in something
Down
- 1. not composing
- 2. opposite of exothermic
- 5. opposite of endothermic
- 7. cars made of this
- 9. opposite of chemical change
- 12. varient of chemical elements
- 13. makes things react
- 16. on an i
- 17. uses heat to combust