extensive property
property that depends on the amount of matter in a sample
intensive property
property that depends on the type of matter in a sample
extensive property example
shape, mass, volume
intensive property example
reactivity, absorbency, elasticity, strength
physical properties
hardness, color, conductivity, malleability
mixture
physical blend of two or more components
heterogenous mixture
mixture in which in the compostion is NOT uniform throughout
homogeneous mixture
mixture in which the compostition is uniform throughout
phases
any part of sample with uniform compostition & properties
ways of seperating mixtures
physically, decanted, filtration, distillation
five areas of study
organic, inorganic, biochemistry, analytical, physical
what did lasovisier do
made a balance that could measure mass to the nearest 0.005 grams
chemisty transform from science of observation to
science of measurement
independent variable
variable that you change (manipulated)
dependent variable
variable that is observed (responding)