Chem 1 Exam 1 1.2
solid
is rigid and has definit shape
liquid
flows and takes shape of its container
gas
takes both shape and volume of its container
Plasma
A gaseous state of matter that contains appreciable amounts of electrically charged particles
Gas to liquid
Condensation
liquid to gas
Vaporisation
Solid to liquid
Fusion
liquid to solid
Solidification
Solid to Gas
Sublimation
Gas to Solid
Reverse Subimation
element
pure substance that can not be broken down by chemical changes
Atom
the smallest particle of an element that shares the properties of that element and can enter into chemical combination
molecule
Consists of 2 or < chemicaly bonded elements
Pure substances
have constant composion. I E Elements & Compounds
Compounds
Pure Substance can be broken down mit chem changes
Mixtures
compound 2 or < types of matter that can be present in varying amounts and can be separated buy chemical changes
homogeneous mixture
exhibits uniform composition and sppears visually same throughout.
heterogeneous mixture
has composition that varies from point to point