Properties (1 Viewer)

[crammy90]

[FONT=Arial, Helvetica, sans-serif]"GasChromotography is used to separate complex mixtures of different molecules based on their physical properties, such as polarity and boiling point."
i think im confused as to what is a physical and chemical property?
is chemical only for how they react and physical is other stuff?
could some1 give me some examples of each?
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[minijumbuk]

Chemical properties are more about the reaction of the substance. E.g. A physical property of octane would be that it's liquid at room temp, it has X degrees boiling point, transparent liquid, etc...
Chemical property would be that it would ignite easily in oxygen to undergo combustion.

 

[crammy90]

so if im classifying O2 and ozone:
Physical:

• appearance
• boiling/mp
• density
• bonding

Chemical:

• Solubility in water
• stability
• Reactivity

Or is bonding chemical because if affects how it reacts hence its chemistry?
and if i was saying Ozone is more reactive that O2 and talked about being oxidising agents could i say:
2Mn + 3O2 -> 2MnO + O2......==Oxygen requires more molecules to oxidise as isnt as strong oxidising agent
Mn + O3 -> MnO + O2...........==Ozone needs fewer molecule to oxidise a substance as it readily looses O-->reactive-->stronger oxidant

 

[crammy90]

:s