Across
- 8. mass must equal the same before and after a chemical reaction
- 9. two or more atoms fused
- 14. left side of a chemical equation
- 18. can be physically separated
- 19. letter(s) representing an element
- 21. properties only observed after a chemical reaction
- 22. stored energy in an object
- 23. the ability a system has to function
Down
- 1. matter isn't created nor destroyed
- 2. a mixture blended evenly
- 3. right side of a chemical equation
- 4. horizontal rows of the periodic table
- 5. energy can't be created or destoryed
- 6. the amount of matter per unit of volume
- 7. a mixture blended unevenly
- 10. energy in the form of motion
- 11. element symbols and subscripts representing a substance
- 12. ionized gas
- 13. everything and anything that has mass
- 15. substance made of one atom throughout
- 16. properties that can be observed before a chemical reaction
- 17. smallest unit of an element
- 20. organizes all known elements
- 22. either an element or a compound
- 24. vertical rows of the periodic table