Across
- 4. Simplest form of matter listed on the periodic table
- 6. High-energy state of matter made of ionized particles
- 7. Resistance to flow
- 9. How easily a substance reacts with another substance
- 10. State of matter with variable shape and volume
- 12. property A property observed only during a chemical reaction
- 14. A chemical reaction involving oxygen
- 15. molecular theory Theory that explains particle motion in matter
- 17. Two or more substances physically mixed together
- 18. change A change that alters form but not identity
- 19. Ability of a substance to dissolve
- 21. Two or more atoms chemically bonded in a fixed proportion
- 22. State of matter with fixed volume but variable shape
Down
- 1. change A change that produces new substances
- 2. Energy required to change liquid to gas
- 3. Energy required to change solid to liquid
- 5. Mass per unit volume
- 8. Measure of the average kinetic energy of particles
- 11. Anything that takes up space and has mass
- 13. of conservation of matter Matter is neither created nor destroyed in a chemical change
- 16. Ability of a substance to catch fire
- 18. property A property observed without changing a substance’s identity
- 20. State of matter with fixed shape and volume