Unit 6 Chapter 1

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Across
  1. 2. the study of the properties of matter and how matter changes
  2. 4. a change in which energy is released
  3. 7. the amount of space that matter occupies
  4. 8. a measure of the force of gravity acting on an object
  5. 9. a pure substance that cannot be broken down into other substances by chemical or physical means
  6. 10. SI unit of mass
  7. 11. the basic particle from which all elements are made; the smallest particle of an element that has the properties of that element
  8. 12. the force of attraction that holds two atoms together
  9. 13. a characteristic of a substance that describes its ability to change into different substances
  10. 14. a characteristic of a pure substance that can be observed without changing it into another substance
  11. 16. anything that has mass and takes up space
  12. 17. a change in which one or more substances combine or break apart to form new substances
  13. 18. a single kind of matter that is pure and has a specific set of properties
  14. 20. SI unit of volume
  15. 21. a substance made of two or more elements chemically combined in a specific ration, or proportion
  16. 22. a form of potential energy that is stored in chemical bonds between atoms
Down
  1. 1. two or more substances that are together in the same place but their atoms are not chemically bonded.
  2. 2. symbols that show the elements in a compound and the ratio of atoms
  3. 3. the measurement of how much mass of a substance is contained in a given volume
  4. 4. a change in which energy is absorbed
  5. 5. a measure of how much matter is in an object
  6. 6. how hot or cold something is
  7. 14. a change that alters the form or appearance of a material but does not make the material into another substance
  8. 15. the total energy of the motion of all of the particles in an object
  9. 19. a neutral group of two or more atoms held together by covalent bonds