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. H₂O