Card Set Information

2011-09-06 22:17:30

note cards
Show Answers:

  1. mass
    measure of the amount of matter the object contains
  2. volume
    meausre of the space occupied by the object
  3. extensive property
    property that depends on the amount of matter in a sample (quantity, how much)
  4. intensive property
    property that depends on the type of matter ina sample, not the amount of matter (structure, reaction itself)
  5. substance
    matter that has a definite and uniform composition
  6. physical property
    quality or condition of a property that can be observed or meausred without changing the substances composition
  7. solid
    form of matter that has a definite shape and volume, doesnt depend on shape of container
  8. liquid
    form of matter that has an indefinite shape, flows, yet has a fixed volume
  9. gas
    form of mastter that takes both the shape and volume of its container
  10. vapor
    describes gaseous state of a substance that is genereally a liquid or solid at room temperature
  11. physical change
    some properties of a material change, but the compostion of the material does not change
  12. mixture
    physical blend of two or more compounds
  13. heterogenous mixture
    mixture in which the compostion is not uniform throughout
  14. homogenous mixture
    mixture in which the composition is uniform throughtout. aka. solution
  15. phase
    used to describe any part of a sample with uniform composition and properties.
  16. filtration
    process that seperates a solid from a liquid in a heterogenous mixture
  17. distillation
    a liquid is boiled to produce a vapor that is then condesnsed into a liquid
  18. element
    simplest form of matter that has a unique set of properties ex. oxygen plus hydrogen
  19. compound
    substance that contains two or more elements chemically combined in a fixed proportion ex. sucrose
  20. chenical change
    change that produces matter with a different composition then the original matter. ex- heating
  21. chemical symbol
    one or two letter symbol that represents an element
  22. period
    horizontal row of the periodic table of elements
  23. group
    each veritcal column
  24. chemical property
    ability of a substance to undergo a specific chemical change. ex. ability to rust
  25. chemical reaction
    one or more substances changes into one or more new substances
  26. reactant
    substance present at the start of a reaction
  27. product
    substance produced in the reaction
  28. precipitate
    a solid that forms and settles out of a liquid mixture
  29. law of conservation of mass
    states that in any physical change or chemcial reaction mass must be conserved. mass is neither created nor destroyed