Chapter 1

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Across
  1. 3. is an element that has some
  2. 11. is the amount of three-dimensional space an object occupies.
  3. 14. is a change in a substance that does not involve a change in the identity of the substance.
  4. 18. is an element that is a good electrical conductor and a good heat conductor.
  5. 19. properties, depend on the amount of
  6. 21. is a physical change of a substance from one state to another.
  7. 22. is a pure substance that cannot be broken down into simpler stable substances and is made of one type of atom.
  8. 23. are called solutions • uniform in composition (salt-water solution)
  9. 25. is a substance that can be broken down into simple stable substances Each compound is made from the atoms of two or more elements that are chemically bonded.
  10. 27. that is present.
  11. 28. has a fixed composition.
  12. 29. are the substances that are formed by the chemical change.
  13. 31. are the substances that react in a chemical change.
  14. 32. is anything that has mass and takes up space.
  15. 33. is a high-temperature physical state of matter in which atoms lose most of their electrons, particles that make up atoms.
Down
  1. 1. is any substance that has a definite composition.
  2. 2. matter has definite volume and definite shape.
  3. 4. typically involves the production and use of products that improve our quality of life.
  4. 5. relates to a substance’s ability to undergo changes that transform it into different substances
  5. 6. is a characteristic that can be observed or measured without changing the identity of the substance.
  6. 7. of metals and some characteristics of nonmetals.
  7. 8. the chemical identity of that element.
  8. 9. temperature at which a liquid boils and changes state to become a gas at a given pressure.
  9. 10. mass to volume ratio of a substance
  10. 12. not uniform throughout (clay-water mixture)
  11. 13. is a measure of the amount of matter.
  12. 15. temperature at which a solid changes state to become a liquid
  13. 16. matter has neither definite volume nor definite shape.
  14. 17. is the smallest unit of an element that
  15. 20. The horizontal rows of elements in the periodic table are called
  16. 24. is a blend of two or more kinds of matter, each of which retains its own identity and properties.
  17. 26. matter has a definite volume but an indefinite shape
  18. 30. is always involved when physical or chemical changes occur.