Ch 1 and 16 Vocab

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Across
  1. 6. being the same throughout
  2. 7. A change that requires a change in chemical composition to observe
  3. 9. something that is uniform throughout and each sample will have the same properties
  4. 10. Something that you don't have to change the matter to observe
  5. 11. a pure substance composed of at least two atoms that can be broken down into its elements
  6. 14. A property that does depend on the amount of matter in a sample
  7. 15. A measure of how fast the atoms of an object is vibrating
  8. 17. a blend of two different examples of matter that keep their own properties
  9. 18. A reaction that releases heat
  10. 20. something that has mass and takes up space
  11. 21. the property of a substance to not react (its stable)
  12. 22. A reaction that draws in heat to react
Down
  1. 1. a device used to measure the energy within a substance in calories/joules
  2. 2. a combination of two substances that is uniform throughout, but is not a pure substance
  3. 3. something that can be observed without a change in chemical composition
  4. 4. having different parts and not being uniform throughout
  5. 5. A property that can only be observed by changing chemical composition.
  6. 8. A property that does not depend on the amount of matter in a sample
  7. 12. a pure substance that cannot be broken down
  8. 13. amount of heat required to raise a substance one degree Celsius/Kelvin
  9. 16. the energy transferred between objects at different temperatures
  10. 19. a unit of energy