Test #1

  1. Which of the following terms is a unit of metric length?




    B) centimeter
  2. A tall glass cylinder contains four separate liquid layers: mercury (d = 13.6 g/mL),chloroform (d = 1.49 g/mL), acetic acid (d = 1.05 g/mL) and ether (d = 0.708 g/mL). If amarble (d = 2.70 g/mL) is carefully dropped into the cylinder, where does it come to rest?




    B) on top of the mercury layer
  3. A homogeneous mixture has




    C) a uniform appearance and composition throughout.
  4. The following are properties of the element, antimony. Which property is NOT a physicalproperty?




    B) Reacts with nitric acid to form antimonic oxide.
  5. If a pound of chocolates were bought in San Francisco and taken into orbit above the Earthin the space shuttle, which of the following statements would be true?




    B) It would weigh less but have the same mass.
  6. Which of the following is a chemical change?




    D) burning gasoline
  7. Convert –40o F to K.




    A) 233 K
  8. The “plum-pudding” model of the atom was proposed by




    D) Thomson
  9. Which statement is NOT part of Dalton’s atomic theory?




    A) Elements consist of isotopes having differing masses.
  10. Ernest Rutherford’s scattering experiments showed that




    B) all the positive charge and nearly all the mass of an atom are in the nucleus.
  11. An isotope that has 35 p+, 35e–, and 46 no is




    D) 35Br81
  12. Which of the following elements is a nonmetal?




    C) oxygen
  13. Which of the following would be expected to have properties most similar to phosphorus?




    D) nitrogen
  14. What is the name of the family of elements in Group IIA?




    C) alkaline earth metals
  15. What term refers to a vertical column in the periodic table of elements?




    C) group
  16. What member of the third period forms stable +2 ions?




    A) Mg
  17. Anions are formed by




    B) adding electrons to an atom.
  18. Generally observed behavior which can be formulated into a statement, sometimes mathematical in nature, is called a(n)




    D) natural law.
  19. The statement "The total mass of materials is not affected by a chemical change in those materials" is called a(n)




    A) natural law.
  20. Which of the following is an example of a auqntitative observation?




    B) The temperature of the liquid is 60oC.
  21. A summary of experimental data is a




    D) law.
  22. Which of the following statements is false?




    A) A theory can be proven correct if sufficient experimental data is acquired.
  23. A ____ is a summary of observed behavior and a ____ is an explanation of behavior.




    B) law, theory
  24. A set of tested hypotheses that gives an overall explanation of some natural phenomenon is called a(n)




    D) theory.
  25. In order to conduct an investigation, a chemist follows an experimental format often called ____.




    D) the scientific method
  26. A consistent explanation of known observations is called a(n)




    B) theory.
  27. An interpretation of the results of many tests is called a(n)




    B) hypothesis.
  28. Roll sulfur is yellow in color. This statement is

    A) a scientific law expressing the directly observable results of many different experiments.
    B) a scientific theory, which while it cannot be directly measured or
    observed, is in accord with and explains the results of experiments.
    C) a specific experimental fact that is not related to any scientific law.
    D) none of the above
    C) a specific experimental fact that is not related to any scientific law.
  29. A valence electron in a pure metal is not held by any specific atom
    but all valence electrons are used to hold together the atoms of the
    metal. This is best classified as

    A) a scientific law expressing the directly observable results of many different experiments.
    B) a scientific theory which, while it cannot be directly measured or
    observed, is in accord with and explains the results of experiments.
    C) an opinion not based on evidence.
    D) a specific experimental fact.
    B) a scientific theory which, while it cannot be directly measured or

    observed, is in accord with and explains the results of experiments.
  30. The prefix for 10-2 is _____.





    C) centi
  31. A milliter is the same as....





    C) cubic centimeter
  32. The number 6.55 x 102 could properly be written as _____.





    C) 655
  33. When converting from inches to centimeters, the number of inches should be _____.




    A) multiplied by 2.54 cm/in.
  34. A quart is about the same volume as _____.





    A) a liter
  35. The density of water is about _____.





    E) 1 g/mL
  36. Micro is the prefix for _____.





    C) 10-6
  37. The metric system of measurement utilizes powers of _____ as a relationship between units.





    B) 10
  38. The number 0.0000126 would be written as _____ in scientific notation when rounded to two significant figures.





    D) 1.3 x 10-5
  39. In the English system of measurement a(n) _____ is not a length measurement.





    D) meter
  40. _____ is the fundamental measure of how much matter is present.





    E) Mass
  41. Densities may be expressed in _____.





    A) grams per liter
  42. A mile is about the same size as _____.





    E) 0.6 of a kilometer
  43. n using dimensional analysis for solving problems, a unit that
    appears in the numerator (top) of one factor and in the denominator
    (bottom) of another factor can cancel each other.

    A) True
    B) False
    A) True
  44. The state of matter for an object that has neither definite shape nor definite volume is





    A) gaseous
  45. The state of matter for an object that has a definite volume but not a definite shape is





    D) solid
  46. The state of matter for an object that has both definite volume and definite shape is





    C) solid
  47. Which of the following involves a chemical change?





    A) cooking an egg
  48. Which of the following is a physical change?





    C) evaporating water
  49. Which of these is a chemical property?





    D) Helium is very nonreactive.
  50. Which of the following involves no chemical change?





    B) boiling water
  51. Which of the following is only a physical change?





    A) Sugar dissolves in coffee.
  52. Which of the following is a chemical change?





    D) A "tin" can rusts.
  53. An example of a chemical change is





    E) digesting a pizza
  54. In a chemical change,




    C) the products are different substances from the starting materials
  55. Which of the following describes a chemical property of gold?





    C) Gold is an inert (nonreactive) metal.
  56. Which of the following is a chemical change?





    E) paper burning
  57. How many of the following are pure compounds: sodium, sugar, oxygen, air, iron?





    E) 1
  58. The nutritional calorie (abbreviated Cal) is equal to




    D) 1 kcal.
  59. Which of the following is NOT a type of energy or energy transfer?




    B) temperature
  60. Water has an unusually high




    B) specific heat.
  61. The Law of Conservation of Energy states that




    C) energy can neither be created nor destroyed.
  62. Which of the following is an example of an object possessing kinetic energy?





    D) a ball rolling downhill
  63. The symbol for the element chlorine is





    C) Cl
  64. The symbol for the element potassium is





    E) K
  65. The symbol for the element cobalt is





    C) Co
  66. The symbol for the element mercury is





    D) Hg
  67. The symbol for the element lithium is





    D) Li
  68. The symbol C stands for the element





    E) carbon
  69. The symbol Ag can be used to represent





    D) a silver atom
  70. The symbol for beryllium is





    D) Be
  71. S is the symbol for




    B) sulfur
  72. The symbol for manganese is





    D) Mn
  73. The symbol for magnesium is





    D) Mg
  74. The symbol for the element silver is





    D) Ag
  75. Co is the symbol for





    C) cobalt
  76. The symbol for nitrogen is





    C) N
  77. The law of constant composition applies to





    A) compounds
  78. In chemistry, a formula is used to represent





    E) a compound
  79. Metals occur in the _____ of the periodic table.




    C) lower left
  80. The first suggestion that matter consists of atoms was presented by _____.





    D) ancient Greeks
  81. _____ suggested the plum pudding model of the atom.





    D) Lord Kelvin
  82. The symbol 614C means an isotope of carbon with _____ protons and _____ neutrons.6





    B) 6, 8
  83. The person who developed the periodic table was _____.





    A) Dmitri Mendeleev
  84. An ion of sulfur has _____ protons and _____ electrons.





    C) 16, 18
  85. The neutron is a little more massive than the proton.

    A) True
    B) False
    A) True
  86. The elements of Group 8A are called the halogens.

    A) True
    B) False
    B) False
Author
kieu
ID
63412
Card Set
Test #1
Description
Test #1 study
Updated