1. Describes form or behavior of matter
Physical Property

2. Describes how matter interacts with other matter
Chemical Property

3. Identity Change
Chemical Change

4. One-atom Molecule
Monatomic

5. 2 or more uppercase letters in formula
Compound
2 or more uppercase letters in formula

6. Identity stays the same
Physical Change

7. Phase changes are physical changes. Identity stays the same.
H2O(l)  H2O(g)

8. Identity changes. Chemical change.
2H2O(l)  2H2 + O2(g)

9. 2-Atom Molecule
Diatomic

10. Take the shape & volume of their container
Gases

11. Physical property expressed with a # & unit. Independent of sample size.
Physical Constant

12. Definite volume but no definite shape
Liquids

13. Definite volume & definite shape
Solids

14. 2 or more elements chemically combined
Compound

15. Cannot be broken down into anything simpler by ordinary chemical or physical methods
Element

16. Physical combination of 2 or more pure substances.
Mixture

17. Elements & Compounds
Pure Substances

18. Heterogeneous or Homogeneous
Mixtures

19. Physical method of separating mixture of 2 or more liquids based on differences in boiling points.
Distillation

20. Homogeneous Mixture. Liquid & gas phase solutions transmit light
Homogeneous Mixture. Liquid & gas phase solutions transmit light. Look translucent. Do not separate on standing.
Solution

21. Heterogeneous Mixture. Scatter light. Look cloudy
Heterogeneous Mixture. Scatter light. Look cloudy. Need to be shaken or stirred. Separate on standing.
Suspension

22. Homogeneous Mixture. NaCl dissolved in water.
NaCl(aq)

23. Pure substance. NaCl in the solid phase.
NaCl(s)

24. Mixture
Variable Composition

25. Pure substance. NaCl in the liquid phase.
NaCl(l)

26. Pure substance. NaCl in the gas phase.
NaCl(g)

27. Uniform, constant, the same throughout.
Homogeneous

28. Pure substance: Element or Compound
Always Homogeneous

29. Physical separation technique used to separate heterogeneous mixtures
Physical separation technique used to separate heterogeneous mixtures. Based on differences in particle size.
Filtration

30. Physical separation technique used to separate heterogeneous mixtures
Physical separation technique used to separate heterogeneous mixtures. Based on differences in appearance.
Sorting

31. Definite & Unique Properties
Pure substance. Element or Compound.
Definite & Unique Properties

32. Broken into components by chemical decomposition reaction
Compound
Broken into components by chemical decomposition reaction

33. Pure substance. Element or Compound.
Definite Composition

34. Separated by physical technique
Mixture
Separated by physical technique

35. 3-atom Molecule
Triatomic

36. May be homogeneous or heterogeneous
Mixture
May be homogeneous or heterogeneous

37. Density, melting point, boiling point
Examples of physical constants
Density, melting point, boiling point

38. Law of conservation of matter
Mass Before = Mass After
Law of conservation of matter

39. No new properties. Properties are a mix of properties of components.
Mixture
No new properties. Properties are a mix of properties of components.

40. Equation represents dissolving. Dissolving is a physical change.
C6H12O6(s)  C6H12O6(aq)

41. Used to identify substances.
Physical Properties

42. Atoms can vibrate back & forth about a fixed position.
Solid state
Atoms can vibrate back & forth about a fixed position.

43. Ways to separate heterogeneous mixtures
Sorting
Filtration
Crystallization
Evaporation
Distillation
Chromatography
Differences in density
Differences in magnetic properties
Differences in solubility
Ways to separate heterogeneous mixtures

44. Change of phase terms Evaporation = l to g Freezing = l to s
Melting = s to l
Condensation = g to l
Boiling = l to g
Deposition = g to s
Fusion = s to l
Sublimation = s to g
Change of phase terms

45. Gas Phase
Molecules are relatively far apart from each other & can move from place to place.

46. One substance dissolved in another substance
Solution
One substance dissolved in another substance

47. Phase at room temperatrue
Physical property
Phase at room temperatrue

48. Liquid Phase
Molecules are pretty close, but have enough room to slide past each other.

49. Physical separation technique based on differences in intermolecular forces.
Chromatography

50. Gas phase of a substance that is usually a liquid at room temperature.
Vapor

51. Names for some chemical changes
Corrosion, Decomposition, Neutralization, Burning
Names for some chemical changes

52. # of atoms of each element before = # of atoms of each element after
Law of Conservation of Matter
# of atoms of each element before = # of atoms of each element after

53. Part X 100%
Whole
Percent

54. 1 upper case letter in formula
Element
1 upper case letter in formula

55. Cutting, Crumpling, Tearing, Pulling into wire, Hammering into sheet
Examples of physical changes
Cutting, Crumpling, Tearing, Pulling into wire, Hammering into sheet

56. Examples of physical changes
Phase Changes

57. Evidence of Chemical Change
Production of heat & light
Formation of a gas (bubbles)
Formation of a precipitate
Change in identifying properties
Evidence of Chemical Change

58. Opposite of dissolving. Solid comes out of solution.
Precipitation
Opposite of dissolving. Solid comes out of solution.

59. Particles arranged in a regular geometric pattern.
Solid
Particles arranged in a regular geometric pattern.

60. Endothermic G
Potential Energy L
Exothermic S

61. Mixture
Pure Substance
Pure Substance
Pure Substance