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, TABLE OF CONTENTS
Interactive General, Organic, & Biological Chemistry (1st Edition) - Test Bank
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Macmillan Learning
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Chapter 1 Science and Measurement
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Chapter 2 Matter and Energy
Chapter 3 Atoms and Nuclear Chemistry
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Chapter 4 Periodic Trends and Ionic Compounds
Chapter 5 Molecular Compounds
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Chapter 6 Chemical Reactions
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Chapter 7
Chapter 8
States of Matter
Solutions
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Chapter 9 Reaction Rates and Equilibrium
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Chapter 10 Acids and Bases
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Chapter 11 Saturated Hydrocarbons
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Chapter 12 Unsaturated Hydrocarbons
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Chapter 13 Introduction to Functional Groups
Chapter 14 Carbonyl-Containing Functional Groups
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Chapter 15 Carbohydrates
Chapter 16 Lipids
Chapter 17 Amino Acids, Peptides, and Proteins
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Chapter 18 Nucleic Acids and Protein Synthesis
Chapter 19 Enzymes, Vitamins, and Minerals
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Chapter 20 Introduction to Metabolism
Chapter 21 Carbohydrate Metabolism
Chapter 22 Fatty Acid and Amino Acid Metabolism
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,Name: Class: Date:
IGOB Chapter 01: Science and Measurement
1. A student is conducting an experiment to determine the effect of pH on enzyme activity. The student predicts that
enzyme activity will be highest at a neutral pH and decrease at both acidic and basic pH levels. Which step of the
scientific method is the student performing when they make this prediction?
a. Hypothesis
b. Experimentation
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c. Observation
d. Analysis
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ANSWER: a
2. A researcher is studying the effect of temperature on the solubility of a salt in water. They first measure the solubility
at 25 °C, then at 35 °C, and finally at 45 °C. Which step of the scientific method does this represent?
a. Experimentation
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b. Analysis
c. Conclusion
d. Hypothesis
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ANSWER: a
3. Convert the following number from standard notation to scientific notation:
2350 g
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ANSWER: g
4. Convert the following number from standard notation to scientific notation:
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0.00941 mL
ANSWER: mL
5. Convert the following number from scientific notation to standard notation:
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m
ANSWER: 74,200,000 m
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6. Convert the following number from scientific notation to standard notation:
g
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ANSWER: 0.000135 g
7. Evaluate using a calculator.
ANSWER: 223
, Name: Class: Date:
IGOB Chapter 01: Science and Measurement
8. During an experiment, a chemist notes several observations. Which of the following is a qualitative observation?
a. The solution turned from blue to green.
b. The solution's temperature increased by 10 degrees Celsius.
c. The mass of the reactant was 5 grams.
d. The pH of the solution was measured to be 7.4.
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ANSWER: a
9. During an experiment, a chemist records several observations. Which of the following is a quantitative observation?
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a. The volume of the gas produced was 2.5 liters.
b. The mixture turned cloudy.
c. The substance dissolved completely.
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d. The liquid emitted a strong odor.
ANSWER: a
10. When making a measurement with a ruler, what is the correct procedure to ensure the most accurate reading?
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a. Estimate to one digit beyond the smallest division markings.
b. Always round to the nearest whole number.
c. Record only the digits that correspond to the smallest division markings.
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d. Always have three significant figures in the measurement.
ANSWER: a
11. When properly reading the volume of liquid in a syringe, which of the following practices should be followed?
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a. Read the volume at the top of the barrel seal.
b. Read the volume in the middle of the barrel seal.
c. Estimate the volume to the nearest whole number.
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d. Record the largest volume marking, ignoring the position of the barrel seal.
ANSWER: a
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12. Which of the following statements is false?
a. Any zeros to the left of all nonzero digits are significant.
b. Any zeros between significant digits are significant.
c. Any zeros to the right of all nonzero digits in a number with decimal-place digits are significant.
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d. All the digits in the coefficient of a number in scientific notation are significant.
ANSWER: a