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30 Cards in this Set
- Front
- Back
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the closeness of a measurement to the true value of the quantity that is measured
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accuracy
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any property of a substance that cannot be studied without converting the substance into some other substance
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chemical property
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the study of matter and the changes it undergoes
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chemistry
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a substance composed of atoms of two ore more elements, chemically united in fixed proportions
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compound
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the mass of a substance divided by its volume
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density
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a substance that cannot be separated into simpler substances by chemical means
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element
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a property that depends on how much matter is being considered
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extensive property
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the individual components of a mixture remain physically separated and can be seen as separate compounds
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heterogeneous mixture
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the composition of the mixture, after sufficient stirring, is the same throughout the solution
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homogeneous mixture
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a tentative explanation for a set of observations
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hypothesis
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a property that does not depend on how much matter is being considered
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intensive property
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a system of units based on metric units
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International System of Units
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the SI base unit of temperature
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kelvin
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a concise verbal or mathematical statement of a relationship between phenomena that is always the same under the same conditions
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law
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the volume occupied by one cubic decimeter
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liter
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properties that can be measured directly
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macroscopic properties
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a measure of the quantity of matter contained in an object
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mass
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anything that occupies space and possesses mass
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matter
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properties that cannot be measured directly without the aid of a microscope or other special instrument
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microscopic property
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a combination of two or more substances in which the substances retain their identity
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mixture
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any property of a substance that can be observed without transforming the substance into some other substance
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physical property
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the closeness of arrangement of two or more measurements of the same quantity
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precision
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consisting of general observations about the system
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qualitative
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comprising numbers obtained by various measurements of the system
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quantitative
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a systematic approach to research
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scientific method
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the number of meaningful digits in a measured or calculated quantity
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significant figures
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a form of matter that has a definite or constant composition ( the number and type of basic units present) and distinct properties
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substance
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a unifying principle that explains a body of facts and the laws that are based on them
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theory
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the length cubed
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volume
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the force that gravity exerts on an object
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weight
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