,This book is a gift that we hope would be of help to our family at STEM.
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Sincerely,
STEM Freelancer’s association
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,Chapter 1: Chemical Foundations
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1. Which of the following is an example of a quantitative observation?
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A) The piece of metal is longer than the piece of wood.
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B) Solution 1 is much darker than solution 2. dd dd dd dd dd dd dd
C) The liquid in beaker A is blue.
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D) The temperature of the liquid is 60°C.
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E) At least two of the above (A-D) are quantitative observations.
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ANS: D DIF: Easy
d d REF: 1.2
KEY: Chemistry | general chemistry | general concepts | scientific
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methodMSC: Conceptual
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2. A quantitative observation
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A) contains a number and a unit dd dd dd dd dd
B) does not contain a number dd dd dd dd
C) always makes a comparison dd dd dd
D) must be obtained through experimentation
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E) is none of these dd dd dd
ANS: A DIF: Easy
d d REF: 1.2
KEY: Chemistry | general chemistry | general concepts | scientific
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methodMSC: Conceptual
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3. Generally, observed behavior that can be formulated into a statement,
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sometimesmathematical in nature, is called a(n)
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A) observation
B) measurement
C) theory
D) natural law dd
E) experiment
ANS: D DIF: Easy
d d REF: 1.2
KEY: Chemistry | general chemistry | general concepts | scientific
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methodMSC: Conceptual
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4. The statement ―The total mass of materials is not affected by a chemical change in
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thosematerials‖ is called a(n)
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A) observation
B) measurement
C) theory
D) natural law dd
E) experiment
ANS: D DIF: Easy
d d REF: 1.2
KEY: Chemistry | general chemistry | general concepts | scientific
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methodMSC: Conceptual
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5. A chemical theory that has been known for a long time becomes a law.
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, ANS: F DIF: Easy
d d REF: 1.2
KEY: Chemistry | general chemistry | general concepts | scientific
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methodMSC: Conceptual
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6. Which of the following metric relationships is incorrect?
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A) 1 microliter = 10–6 liters
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B) 1 gram = 103 kilograms
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C) 103 milliliters = 1 liter dd dd dd dd
D) 1 gram = 102 centigrams
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E) 10 decimeters = 1 meter
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ANS: B DIF: Easy
d d REF: 1.3
KEY: Chemistry | general chemistry | general concepts | measurement | SI unit |
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prefixesMSC: Quantitative
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7. For which pair is the SI prefix not matched correctly with its meaning?
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A)
B)
C)
D)
E)
ANS: C DIF: Easy
d d REF: 1.3
KEY: Chemistry | general chemistry | general concepts | measurement | SI unit |
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prefixesMSC: Conceptual
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8. A metric unit for length is
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A) gram
B) milliliter
C) yard
D) kilometer
E) pound
ANS: D DIF: Easy
d d REF: 1.3
KEY: Chemistry | general chemistry | general concepts | measurement | SI unit | base
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unitMSC: Conceptual
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9. Which of the following is not a unit in the SI system?
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A) ampere
B) candela
C) Kelvin
D) meter
E) calorie
ANS: E DIF: Easy
d d REF: 1.3
KEY: Chemistry | general chemistry | general concepts | measurement | SI unit | base
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unitMSC: Conceptual
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10. Order the four metric prefixes from smallest to largest.
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