Chapter 1 - Chemistry: The Study of Change

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Chemistry

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21 Terms

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margin of error
The ________ in a measurement is indicated using significant figures, which are the meaningful digits in a measured or calculated quantity.
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Mass
________ is a broad attribute that refers to the amount of matter in a particular sample of a substance.
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force of gravity
The ________ acting on an object is known as weight.
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intensive property
A(n) ________ is a density, which is defined as the mass of an object divided by its volume.
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Chemists
________ can examine the structure of atoms and molecules, which are the fundamental units of chemistry, and create new compounds with specified features.
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Chemistry
________ is sometimes referred to as the "core science "because pupils must have a fundamental understanding of the subject.
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Oil
________ and water do not mix, and boiling water left on the burner evaporates, as you know from culinary experience.
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F
The (________= ma) law states that when an object's mass or acceleration increases, so does its force, and vice versa.
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succinct verbal
Law is a(n) ________ or mathematical description of a constant relationship between events under constant conditions.
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theory
A(n) ________ is a guiding principle that explains a collection of facts and /or the laws that govern them.
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Physical attributes
________ include color, melting point, and boiling point.
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methodical approach
A(n) ________ to study is known as the scientific method.
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hypothesis
A(n) ________ is a possible explanation for a set of facts.
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Elements
________ and compounds are both examples of substances.
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scientific method
The ________, which is a methodical approach to research, is used in all areas, including the social sciences.
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Chemists' measurements
________ are frequently employed in computations to obtain other quantities.
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Homogeneous
________ and heterogeneous mixtures are the two types of mixtures.
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gas burns
The statement "Hydrogen ________ in oxygen gas to form water "describes a chemical property of hydrogen.
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experimental findings
If an experiment disproves a theory, it must be rejected or adjusted to make it consistent with ________.
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Chemistry
________ is the study of matter and the processes that it goes through.
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Chemistry
________ is an old subject, but its contemporary basis was formed in the nineteenth century.