Across
- 4. Chemical reaction involving oxygen, fuel and heat
- 7. Workplace hazardous materials information system
- 11. Subatomic particle with no electrical charge
- 12. reaction that occurs when two or more substances combine to form a new substance
- 18. number of protons in one atom of an element
- 21. Stands for atomic mass unit
- 23. most reactive metals
- 24. group 18 in the periodic table, the most stable and unreactive elements
Down
- 1. A substance can be rolled into sheets
- 2. substance that electric charge can move through easily
- 3. an experiment in which the products can escape but are still accounted for
- 5. Subatomic particle in the nucleus with positive charge
- 6. combination of symbols that represent a compound
- 8. negatively charged particle around the nucleus of an atom
- 9. Chemical reaction
- 10. Smallest part of an element
- 12. experiment in which all the products are there and accounted for
- 13. Chemical reaction that releases heat
- 14. substance that resists the flow of electrons
- 15. solution in which water is the solvent
- 16. combination of two or more elements
- 17. amount of mass in a given volume of a substance
- 19. low chemical change that occurs when oxygen reacts with metals
- 20. description of a solid that can be stretched into long wires
- 22. A substance that helps to speed up a chemical reaction