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25 Cards in this Set
- Front
- Back
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the study of matter and how it changes
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chemistry
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anything that has mass and occupies space
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matter
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a substance that cannot be broken down into simpler substances
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element
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the smallest particle that has the properties of an element
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atom
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a substance made of atoms of more than one element bound together
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compound
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the smallest until of a substance that exhibits all of the properties characteristic of that substance
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molecule
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the chemical symboles and numbers indicating the atoms containedin the basic untit of a substance
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chemical formula
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any matter that has a fixed composition and definite properties
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pure substance
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a combination of more than one pure substance
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mixture
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describe two or more liquids that are able to dissolve into each other in various proportions
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miscible
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describes two or more liquids that do not mix into each other
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immiscrible
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the force exerted per until area of a surface
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pressure
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the resistance of a fluid to flow
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viscosity
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the ability to change or move matter
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energy
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the change of a substance from liquid to a gas
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evaporation
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the change of a substance from a gas to a liquid
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condensation
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the change of a substance from a solid to a gas
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sublimation
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the way a substance reacts with others to a form new substances with different properties
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chemical prpoerty
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the ability of a substance to combine chemically with another substace
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reactivity
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a characteristic of a substance that can be observed or measured without changing the composition of a substance
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physical property
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the temperature at which a solid becomes a liquid
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melting point
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the temperature at which a liquid becomes a gas below the surface
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boling point
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the force witha which a more dense fluid pushes a less dense substance upward
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buoyancy
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a change that occures when a substamce changes composition by forming one or more new substances
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chamical change
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a change in the physical form or properties of a substance that occures without a change in composition
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physical change
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