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26 Cards in this Set

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