ZUMDAL CHEMISTRY 9TH EDITION TEST BANK

1. Which of the following is an example of a quantitative observation? A) The piece of metal is longer than the piece of wood. B) Solution 1 is much darker than solution 2. C) The liquid in beaker A is blue. D) The temperature of the liquid is 60°C. E) At least two of the above (A-D) are quantitative observations. ANS: D DIF: Easy REF: 1.2 KEY: Chemistry | general chemistry | general concepts | scientific method MSC: Conceptual 2. A quantitative observation A) contains a number and a unit B) does not contain a number C) always makes a comparison D) must be obtained through experimentation E) is none of these ANS: A DIF: Easy REF: 1.2 KEY: Chemistry | general chemistry | general concepts | scientific method MSC: Conceptual 3. Generally, observed behavior that can be formulated into a statement, sometimes mathematical in nature, is called a(n) A) observation B) measurement C) theory D) natural law E) experiment ANS: D DIF: Easy REF: 1.2 KEY: Chemistry | general chemistry | general concepts | scientific method MSC: Conceptual 4. The statement “The total mass of materials is not affected by a chemical change in those materials” is called a(n) A) observation B) measurement C) theory D) natural law E) experiment ANS: D DIF: Easy REF: 1.2 KEY: Chemistry | general chemistry | general concepts | scientific method MSC: Conceptual 5. A chemical theory that has been known for a long time becomes a law. ANS: F DIF: Easy REF: 1.2 KEY: Chemistry | general chemistry | general concepts | scientific method MSC: Conceptual 6. Which of the following metric relationships is incorrect? A) 1 microliter = 10–6 liters B) 1 gram = 103 kilograms C) 103 milliliters = 1 liter D) 1 gram = 102 centigrams E) 10 decimeters = 1 meter ANS: B DIF: Easy REF: 1.3 KEY: Chemistry | general chemistry | general concepts | measurement | SI unit | prefixes MSC: Quantitative 7. For which pair is the SI prefix not matched correctly with its meaning? A) B) C) D) E) ANS: C DIF: Easy REF: 1.3 KEY: Chemistry | general chemistry | general concepts | measurement | SI unit | prefixes MSC: Conceptual 8. A metric unit for length is A) gram B) milliliter C) yard D) kilometer E) pound ANS: D DIF: Easy REF: 1.3 KEY: Chemistry | general chemistry | general concepts | measurement | SI unit | base unit MSC: Conceptual 9. Which of the following is not a unit in the SI system? A) ampere B) candela C) Kelvin D) meter E) calorie ANS: E DIF: Easy REF: 1.3 KEY: Chemistry | general chemistry | general concepts | measurement | SI unit | base unit MSC: Conceptual