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Classifaication of matter
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How many chains are there in the C.O.M, what are they and what is in them?
There are 2
#1 includes
mixtures
mechanical mixtures+Solutions
Ordinary mechanical mixtures+suspensions+colloids
#2
Pure substances
Elements+Compounds
What is the difference between a homogeneous and heterogeneous mixture?
homogeneous:
looks the same throughout ( 1 phase)
heterogeneous:
does not look the same throughout (2 or more phases)
Define Mixtures
(and is it Heterogeneous or homogeneous?)
*Made of two or more kinds of molecules (particles)
Heterogeneous
Mechanical mixtures (htg or hmg)
*Different visual Particles
*ex. pizza
heterogenous
Solutions (htg or hmg)
*Different particles
*Too small to see even with a microscope
ex. salt water
Homogeneous
Ordinary Mechanical mixtures
*easy to see different parts
*ex. bread,eggs
Heterogeneous
Suspensions
*solid particles that eventually settle out
*ex. Pond water, raw milk
Heterogeneous
Colloids
*very small particles that
do not
settle out but they do scatter
ex. homo milk
jello
Heterogeneous
Pure Sunstances
* made of one kind of atom or molecule
Homogeneous
Elements(atoms)
*Appear on the periodic table
ex. hydgen
Homogeneous
Compounds(molecules)
*Combinations of elements
ex. H
2
O
Author
Olivia14
ID
4831
Card Set
Classifaication of matter
Description
science
Updated
2010-01-23T19:02:25Z
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