9. Question? Density is what kind of property? A. atomic B. intensive C. extensive D. dependent
10. Question? What defines a gas? A. Gases have a definite volume and shape. B. Gases have a definite volume but take the shape of their container. C. Gases have no definite volume or shape. D. Gases have a definite shape but no definite volume.
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15. Question? When one substances turns into another, what kind of change has taken place? A. chemical reaction B. physical reaction C. extensive reaction D. nuclear reaction
16. Question? The law of conservation of mass states that: A. Matter can be created and destroyed. B. Matter can be created but not destroyed. C. The products of a reaction always have a greater mass than the reactants. D. The products of a reaction must have the same mass as the reactants.
35. Section 3-4 What is a period on the periodic table of the elements? A. a vertical columns B. even numbered elements only C. horizontal rows D. the last vertical column only
36. Question? An element is a substance that cannot be A. divided into simpler substances. B. combined to form a mixture. C. combined to form an element. D. different phases.
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42. Question? Which of the following is NOT a physical property of water? A. Ice melts at 0°C. B. Water boils at 100. C. Water reacts violently with pure sodium. D. Water is a liquid at room temperature.
43. Question? 28.0 grams of nitrogen gas reacts completely with 6.0 grams of hydrogen to form 34.0 grams of ammonia. What does this demonstrate? A. the law of conservation of energy B. sublimation C. distillation D. the law of conservation of mass
44. Question? What is the best way to separate salt dissolved in water? A. sublimation B. crystallization C. freezing D. filtration
45. Question? Two or more elements chemically joined form what? A. substance B. heterogeneous mixture C. homogenous solution D. compound
46. Question? What is the ratio of oxygen to carbon in carbon dioxide (CO 2 )? A. 2:1 B. 1:2 C. 1:1 D. 1:3
47. Question? Which is NOT a chemical reaction? A. a car rusting B. dissolving sugar in water C. wood burning D. a banana ripening
48. Question? Which describes a substance that is in the liquid state? A. It has a definite shape. B. It has no definite volume. C. It can be compressed into a smaller volume. D. It has a definite volume.
49. Question? Elements in the same period are likely to have similar ____. A. physical properties B. densities C. chemical properties D. melting points
50. Question? Filtration is an easy way to separate what? A. heterogeneous mixture B. homogeneous mixture C. compounds D. solutions
51. Question? Compounds can be broken into their component elements by which of the following? A. crystallization B. distillation C. filtration D. chemical reaction
62. CIM Figure 3.4 Three Common States of Matter Figure 3.10 Conservation of Mass Table 3.3 Types of Solution Systems
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