Across
- 4. found on right side of equation
- 6. releases heat
- 8. an organic catalyst
- 9. one or two products can escape
- 11. when non-metals combine they produce a pure substance called_________.
- 16. mass number minus atomic number
- 18. pure substances formed as a result of attraction between particles of opposite charges
- 20. uses words to identify compound
- 23. from solid to gas
- 24. average mass of an element
Down
- 1. fast chemical reaction
- 2. from liquid to gas
- 3. from solid to liquid
- 5. from liquid to solid
- 7. found on left side of equation
- 10. from solid to gas
- 11. pounded or rolled into sheets
- 12. uses symbols and numbers
- 13. also tells the amount of protons
- 14. non-reversible
- 15. reversible
- 17. stretched into a long wire
- 19. from gas to liquid
- 21. absorbs heat
- 22. slow chemical reaction
- 25. anything that occupies space