CHEMISTRY I

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Mixture Exam I review
Matching:
1. ______ Anything that has mass and takes up space.
2. ______ Substance that looks completely uniform throughout.
3. ______ Substances of variable composition.
4. ______ Have a definite composition (element or compound)
5. ______ Different substances that are physically mixed together.
6. ______ Homogeneous mixture that contains the smallest particles.
7. _____ Heterogeneous mixture that contains the largest particles.
8. ______ Medium size particles and does not settle out, displays Tyndall effect
9. ______ One type of atom that cannot be separated into simpler substances.
10. ______ Two or more elements that are chemically combined together.
11. ______ Any substance that contains carbon (except CO, CO2, and CO3-).
12. ______ Any substance that does not contain carbon.
13. ______ A measure of the amount of matter
14. ______ Particles in a mixture are large enough to scatter light.
15. ______ Constant movement of particles in a mixture.
16. ______Substance in a solution that is dissolved.
17. ______ Substance in a solution that does the dissolving.
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
L.
M.
N.
O.
P.
Q.
Mass
Brownian motion
Colloid
Compound
Element
Heterogeneous
Homogeneous
Inorganic
Matter
Mixtures
Organic
Pure substance
Solute
Solutions
Solvent
Suspension
Tyndall effect
Complete the following table:
Particle Size
Separated by
filter paper?
Separated by
a membrane?
Will particles settle
out over time?
Tyndall Effect
displayed?
Solutions
Colloids
Suspensions
Identify the following as a metal, non-metal, or metalloid
21. Loses e-s
26. Boron
31. Loses or gains e-s
22. Brittle
27. Malleable
32. Copper
23. Mostly gases
28. gains e-s
33. Lustrous
24. Bromine
29. Dull
25. Conducts electricity
30. Ductile
In each of the following solutions, identify the solute and the solvent.
34. salt water
35. humidity
36. Atmosphere
37. soda
Identify the following as organic or inorganic.
38. water (H2O)
41. salt (NaCl)
39. propane (C3H8)
42. sucrose (C12H22O11)
40. calcium carbonate (CaCO3)
43. vitamin C (C6H8O6)
Identify the following as homogeneous or heterogeneous
44. salt water
47. carbon dioxide
45. Italian dressing
48. sterling silver (Cu and Ag)
46. muddy water
49. smoke
Identify the following as an element (E), compound (C), or mixture (M).
50. Kool-aid
54. mercury
58. baking soda (Na2CO3)
51. soda
55. piece of notebook paper
59. salt water
52. paradichlorobenzene
56. mustard
60. Firewood
53. silicon
57. table salt
61. Bismuth
Identify the following as a solution (SL), suspension (SP), or colloid (C).
62. paint
68. vinegar
63. muddy water
69. shaving cream
64. salad dressing
70. Pepto-Bismol (‘shake well before using’)
65. humidity
71. smoke
66. fog
72. metal alloys
67. the atmosphere
73. milk
Matching:
1. _____ Matter that must be chemically separated into its original elements.
A. Centrifugation
2. _____ Matter that can be physically separated into pure substances.
B. Chemical Change
3. _____ Method of separation that relies on substances’ different densities.
C. Chemical Property
4. _____ Method of separation that relies on substances’ different absorptions.
D. Chromatography
5. _____ Method of separation that relies on substances’ different boiling points.
E. Compound
6. _____ Method of separation that relies on substances’ different solubilities.
F. Density
7. _____ Property of a substance that describes how a substance will react/behave.
G. Distillation
8. _____ Property of a substance that can be observed without changing the
H. Filtration
chemical composition of the substance.
I. Hydrogen Bonding
9. _____ Change in appearance, but not chemical composition.
J. Law of Conserv.
10.____ Change that results in an entirely new substance.
of Matter
11._____ States that matter cannot be created or destroyed.
K. Mixture
12._____ Amount of matter per unit volume – how heavy a substance is.
L. Physical Change
13._____ Intermolecular attraction between hydrogen and a very electronegative
M. Physical Property
atom (i.e. fluorine, nitrogen, or oxygen) from another molecule.
Identify the following as a physical property (PP) or chemical property (CP):
- apples are red
- an iron nail will rust
- milk will spoil
- sandpaper has a rough texture
- alcohol has a low boiling point
- metals are lustrous
- ice is less dense than liquid water
- propane is flammable
- fireworks will explode
- wood rots
Identify the following as evidence of a physical change (PC) or a chemical change (CC):
- change in shape
- heat given off when substance is heated
- formation of bubbles/fizz
- light given off
- heat given off
- formation of a precipitate
- change in phase
- change in size
Identify the following as a physical change (PC) or a chemical change (CC):
- a piece of paper is ripped
- salt is dissolved in water
- a piece of paper is burned
- acid rain corrodes a marble statue
- bread dough rises
- grass grows
- a puddle of water evaporates
- a porcelain vase shatters
- your car starts to rust
- alcohol is separated from water by distillation
Identify the method of separation that would be used to separate the following mixtures:
- salt and sand
- the different pigments in a permanent marker
- two different liquids
- pull different cells out of blood
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