alloy
a solid, homogeneous mixture of 2 or more metals
boiling point
the temperature at which a liquid becomes a gas below the surface; the temperature at which vapor pressure equals atmospheric pressure
chemical change
a change that occurs when a substance changes composition by forming one or more new substances
chemical properties
the way a substance reacts with others to form new substances with different properties
chemistry
the study of matter and how it changes
compound
a substance made of atoms of more than one element bound together
condensation
the change of a substance from a gas to a liquid
deliquescent
a term describing a substance that removes sufficient water from the air to form a solution
density
the mass per unit volume of a substance
element
a substance that cannot be broken down into a simpler substance
evaporation
the change of a substance from a liquid to a gas
homogeneous mixture
a mixture that is completely uniform in composition; its components are not distinguishable
heterogeneous mixture
a mixture that is not uniform in composition; its components are readily distinguishable
immiscible
describes two or more liquids that do not mix into each other
length
the straight-line distance between any two points
mass
a measure of the quantity of matter in an object
melting point
the temperature at which a solid becomes a liquid
miscible
describes two or more liquids that are able to dissolve into each other in various proportions
phase
a state of matter: solid, liquid, gas, or plasma
physical change
a change that occurs in the physical form or properties of a substance that occurs without a change in composition
physical properties
a characteristic of a substance that can be observed or measured without changing the composition of the substance
quantitative measurement
a measurement involving numbers
qualitative measurement
a measurement not involving numbers
reactivity
the ability of a substance to combine chemically with another substance
solute
the substance that dissolves in a solution
solution
a homogeneous mixture of two or more substances uniformly spread throughout a single phase
solvent
the substance that dissolves the solute to make a solution
sublimation
the change of a substance from a solid to a gas
viscosity
the resistance of a fluid to flow
volume
a measure of space, such as the capacity of a container
weight
the force with which gravity pulls on a quantity of matter