Chemistry 101 Midterm Ivy Tech (1-4) exam questions with answers

Chemistry 101 Midterm Ivy Tech (1-4) exam \| \| \| \| \| \| \|




questions with answers \| \|




Which of the following would be considered a theory?
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a. glass is fragile
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b. hot air rises
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c. gasoline has a very strong odor.
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d. helium balloons float because helium is less dense than air.
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e. none of the above - CORRECT ANSWERS ✔✔D
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Which statement accurately describes the purpose of
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experiments?


a. experiments are designed to produce the results predicted by
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a theory.
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b. experiments can be replaced by a simple, logical reasoning of
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known facts. \|




c. experiments are designed to produce unexplainable results for
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further investigation.
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d. experiments look for other observable predictions of a theory.
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e. none of the above. - CORRECT ANSWERS ✔✔D
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,What term best describes a brief statement that summarizes
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many past observations and predicts new ones?
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a. experiment
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b. hypothesis
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c. scientific law
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d. theory
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e. none of the above - CORRECT ANSWERS ✔✔C
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Which statement would NOT be an example of "quantification"?
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a. The newest model of that car gets five more miles per gallon
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than last year's model.
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b. The price of milk went up ten cents per gallon.
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c. The average high temperature this July was two degrees
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higher than last year's average high temperature.
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d. The water in the swimming pool feels colder than it was
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yesterday. \|




e. None of the above. - CORRECT ANSWERS ✔✔D
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Who discovered the law of conservation of mass?
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a. John Dalton
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b. Antoine Lavoisier
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c. Nivaldo Tro
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, d. John Dalton and Antoine Lavoisier
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e. None of the above - CORRECT ANSWERS ✔✔B
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What is the definition of a scientific theory?
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a. A brief statement that summarizes past observations and
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predicts future ones. \| \| \|




b. A model that explains the underlying reasons for observations
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and laws.
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c. The equivalent of a scientific opinion which others may
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disagree with. \|




d. A method of learning that emphasizes reason as the way to
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understand the world. \| \| \|




e. None of the above. - CORRECT ANSWERS ✔✔B
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Which of the statements below is NOT part of the scientific
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method?


a. Observation and measurement
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b. Formation of a hypothesis
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c. Testing of a hypothesis by experimentation
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d. Refinement of a hypothesis as needed
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e. All of the above steps are part of the scientific method. -
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CORRECT ANSWERS ✔✔E \| \|




Which statement about the scientific method is TRUE?
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