Exam 1: The Science of Chemistry
Exam 1: The Science of Chemistry62 Questions
Exam 2: Numbers From Measurements99 Questions
Exam 3: Unit Systems and Dimensional Analysis83 Questions
Exam 4: Basic Concepts About Matter75 Questions
Exam 5: Atoms, Molecules, Formulas, and Subatomic Particles87 Questions
Exam 6: Electronic Structure and Chemical Periodicity92 Questions
Exam 7: Chemical Bonds92 Questions
Exam 8: Chemical Nomenclature97 Questions
Exam 9: Chemical Calculations: the Mole Concept and Chemical Formulas93 Questions
Exam 10: Chemical Calculations Involving Chemical Equations68 Questions
Exam 11: States of Matter65 Questions
Exam 12: Gas Laws78 Questions
Exam 13: Solutions64 Questions
Exam 14: Acids, Bases and Salts65 Questions
Exam 15: Oxidation and Reduction70 Questions
Exam 16: Reaction Rates and Chemical Equilibrium52 Questions
Exam 17: Nuclear Chemistry69 Questions
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Indicate whether each of the following statements is true or false.
- The validity of a hypothesis is dependent upon it randomly predicting the outcome of yet untried experiments.
Free
(True/False)
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Correct Answer:
False
Explain the difference between:
-A theory and a law
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(Essay)
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Correct Answer:
A theory is a statement based on extensive experimentation and a law is a statement that has not been disproven before.
Indicate whether each statement is a
-Smoking cigarettes is detrimental to your health
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(Multiple Choice)
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Correct Answer:
A
A researcher studied the relationship between the wavelength and the frequency of light.
Experiment 1: If the wavelength of light was 0.50 meter, the frequency was 6 × 108 hertz.
Experiment 2: If the wavelength of light was 1.0 meter, the frequency was 3 × 108 hertz.
From this data one can generalize that as the wavelength of light decreases
(Multiple Choice)
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A statement that is obvious to anyone and based on direct experience is called a ________.
(Multiple Choice)
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A formal course in chemistry is essential and fascinating because it helps us ________.
(Multiple Choice)
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The subdiscipline of chemistry that studies fundamental laws and concepts of chemistry is ________.
(Multiple Choice)
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Indicate whether each of the following statements represents a fact, a scientific law, or a hypothesis.
-The reddish-brown gas occupied a volume of 25.9 liters.
(Multiple Choice)
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Identify whether each of the following statements is a theory, hypothesis, observation or law.
-My watch is no longer keeping correct time so my watch battery must be dead.
(Multiple Choice)
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Which of the following subdisciplines of science is not a physical science?
(Multiple Choice)
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When the scientific method is applied to a problem, a set of procedures is followed to acquire knowledge and explain phenomena. The procedural steps associated with the scientific method normally occur in the order ________.
(Multiple Choice)
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Classify the following as representing
-The vial contains a brown liquid.
(Multiple Choice)
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Match the definitions below with the terms at the bottom.
-________ Tentative model or picture that offers an explanation for the behavior of a system
(Short Answer)
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Indicate whether each of the following statements represents
-The gas in the container was reddish-brown in color.
(Multiple Choice)
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A set of procedures used to acquire knowledge and explain phenomena is ________.
(Multiple Choice)
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Identify whether each of the following statements is a theory, hypothesis, observation or law.
-My brother wears green a lot.
(Multiple Choice)
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Classify the following as representing
-The package of peanuts contains about 100 peanuts
(Multiple Choice)
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A valid observation about some natural phenomenon is called ________.
(Multiple Choice)
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Which procedural step comes first in the scientific method?
(Multiple Choice)
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