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25 Cards in this Set

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