Across
- 2. another name for a positive ion
- 8. a regular arrangement of particles
- 9. liquid to solid
- 10. poor heat and electricity conductor
- 12. A compound found between oxygen & other elements
- 13. does not react
- 14. not harmful to healths
- 15. breaks easily when stuck
- 17. doesnt react easily
- 19. reacts with substances it comes into contact with
- 21. solid to liquid
- 23. a soluble base
- 25. The center part of an atom, made up of protons and neutrons
- 27. reusing resources
- 28. will dissolve in a solvent
- 29. group 1 of the periodic table
Down
- 1. how fast a reaction is
- 3. ion with a negative charge
- 4. harmful to healths
- 5. another term for heat
- 6. a starting chemical for a reaction
- 7. ion with a positive charge
- 11. gives out heat energy
- 16. a gradual change
- 18. an insoluble chemical produced during a chemical reaction
- 20. has no charge
- 22. another name for a negative ion
- 24. made up of molecules
- 26. burns easily
- 28. solutes dissolve in it