Across
- 1. Change from a solid to a liquid
- 3. Negative charges
- 4. consists of protons and neutrons
- 8. Ability to dissolve
- 11. Change from a gas to liquid
- 13. Help speed up the reaction rate
- 15. Number of protons
- 17. Amount of mass in a given volume
- 18. Made up of one kind of matter and has a unique set of properties
- 19. Organic catalyst
- 20. Materials created by the reaction
- 21. Materials that start the reaction
- 22. Cloudy mixture in which tiny particles of one substance are held with another
Down
- 1. Can be pounded or rolled into sheets
- 2. Two or more elements combine chemically
- 5. Different substances that make something up and it is not visible
- 6. Slow chemical reaction that decomposes or eats away metal
- 7. chemical reaction that reacts to oxygen and gives off energy and heat
- 9. Ability to _______ electricity and heat
- 10. Groups of atoms acting as one
- 12. Absorbs heat
- 14. Horizontal row in a periodic table
- 16. Releases heat
- 23. Positive charges
- 24. No charges