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26 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 takes up space
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matter
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a substance that cannot be broken down into simpler elements
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element
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a substance made of atoms of more then one element bound together
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compound
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smallest particle that has the properties of an element
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atoms
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smallest unit of a substance that exhibits all of the properties characteristic of that substance
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molecule
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the chemical symbols and numbers indicating the atoms contained in the basic unit 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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combination of more than one pure substance
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mixture
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describes two or more liquids that are abble to dissolve into each other in various proporsitions
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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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immiscible
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the force exerted per unit area of a surface
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pressure
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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 a liquid to a gas
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evaporation
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change of a substance from solid to gas
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sublimation
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the way a substance reacts with others to form new substances with different properties
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chemical property
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the ability of a substance to combine chemically with another substance
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reactivity
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chracteristic of a substance that can be measured without changing the composition of the substance
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physical property
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temperature at which a solid becomes a liquid
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melting point
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temperature at which a liquid becomes a gas below the surface
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boiling point
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mass per unit volume of a surface
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density
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the force with which a more dense fluid pushes a less dense substance upward
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buoyancy
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a change that occurs when a substance changes composition by forming one of more new substances
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chemical change
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change in the physical form or properties of a substance that occurs without a change in composition
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physical change
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the change of a substance from a liquid to a gas
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evaporation
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