Matter

heehawultraMécanique

22 févr. 2014 (il y a 3 années et 5 mois)

81 vue(s)

Classification,

Properties

And Changes

Matter

Substances

Elements

Compounds


Mixtures


Homogeneous

Heterogeneous

Substances

= fixed ratio; can not be separated
using physical properties.


Elements

-

periodic table


Compounds



2 or more elements


combined


Mixtures
= variable ratio; can be separated
using physical properties.


Homogeneous
-

same throughout


Heterogeneous
-

distinguishable


components


Filtering

-

based on size/un
-
dissolved solids


Distillation



based on boiling point


Chromatography



based on solubility


Centrifugation



force on sedimentation


Gaseous Diffusion


lighter gases diffuse


faster


Magnetic Attraction


magnetic properties


Evaporation



dissolved solids from a liquid


Physical Properties
-

can be observed or
measured without changing the identity of
the matter





Chemical Properties


the ability of a
substance to change into a new substance
with different properties


Include: color, odor, texture, density, boiling
point, freezing point, thermal conductivity,


malleability, ductility, solubility, density.


Intensive

one that does not depend on the
system size or the amount of material in the
system

Extensive
one that is directly proportional to
the amount of material in the system


INTENSIVE: EXTENSIVE

`
Temperature Volume


Density Mass


Viscosity Size


Color


State of Matter

Reactivity

Flammability

Oxidation State


loss/gain of electrons


Solid



definite shape and volume



Liquid



definite volume



Gas



no definite shape or volume




Melting



solid to liquid


Boiling



liquid to gas


Condensing



gas to a liquid


Freezing



liquid to solid


Sublimation



solid to gas without passing


through liquid phase


Deposition



gas to solid without passing


through liquid phase