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33 Cards in this Set
- Front
- Back
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definite
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known, sure
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indefinite
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not sure, unknown
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states of matter
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various forms of matter that take various shapes; physical forms of matter
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quantity
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something that is measured; has magnitude, size, or amount
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units
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quantity label adopted as a standard of measurement; describes the quantity
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pure substance or chemical
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any substance that has a defined composition
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conversion factor
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converts one unit into another unit by equivalency
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chemical reaction/change
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process by which one or more substances change to produce one or more different substances
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vibrate
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shakes-eithe violently or very slow/subtle
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expand
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moves in all directions
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flow
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slides past each other
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mass
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measure of the amount of matter in an object
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matter
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Anything that has mass and takes up space
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volume
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Measure of the size of body or region in 3-dimensional speace
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heterogeneous
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mixture of non-uniform distribtuion,structure, or composition
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pure substances
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Definite composition of physical andchemical properties, either a single element or a single compound
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compound
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Substance made of atomrs of 2 or more different elements joined by chemical bonds
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element
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Substance that is only made of 1 type of atom
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reactants
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Subustance or molecule that participates in a chemical reaction
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products
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Substance that is formed in a chemical reaction
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arrow symbol
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Shows change by separating the reactants from products
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energy
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This is relaeased or absorbed when atoms rearrange in chemical reaction
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density
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Ratio of mass-to-volume of a substance
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formula
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Reveals a quantity and composition of a substance - example C6H12O6
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compressibility
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Ability to push molecules closer together by removing empty space-in-between.
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Chemistry
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Study of matter change and energy
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voume
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measue of the size of body or region in 3-dimensional space
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composition
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what something is made of
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mixture
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combination of 2 or more pure substances that are not chemically bonded
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physical property
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characteristic of a substance but DOES NOT change it's identity
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chemical property
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characteristic of a bustance but DOES change it's identity
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atom
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smallest unit of an element that maintains the properties of that element
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homogeneous
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mixture of uniform distribution,structure, or composition.
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