Across
- 4. A substance that has become less dangerous
- 7. will dissolve skin or material
- 8. A piece of equipment that is used to burn things
- 9. A small piece of wood
- 11. Able to catch on fire
- 12. A reaction that can happen to metal
Down
- 1. A chemical made stronger
- 2. pH 0-pH 6
- 3. Two or more substances that give off a ...
- 5. Very dangerous
- 6. Can not be got back when mixed
- 10. pH 8-pH 14