8/30/2013 1 PROPERTIES OF MATTER • Chemical • Physical Physical properties Observed without converting to another substance Intensive – characteristic of the substance Extensive – depends on amount of substance present (mass and volume most important!) Change of state – physical change – no change in Composition – ice liquid water water vapor – still H 2 O Other examples: hardness, mp bp, solubility, density, viscosity, color, taste, Smell (senses) –intensive
Chemical and physical properties
Jun 27, 2015
chemical and physical properties of matter -and chemical and physical changes
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8/30/2013
1
PROPERTIES OF MATTER
• Chemical
• Physical
Physical properties
Observed without converting to another substanceIntensive – characteristic of the substanceExtensive – depends on amount of substance present(mass and volume most important!)
Change of state – physical change – no change in Composition –
ice � liquid water � water vapor – still H2O
Other examples: hardness, mp bp, solubility, density, viscosity, color, taste, Smell (senses) –intensive
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2
Chemical properties
• Relates to reactions of the substance
– Rx change composition of substance
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Chemical properties describe how it can
change into other substances
• In a chemical change – atoms rearrange to
form new substances with new chem/phy
properties
• What does it react with
– O2, acids, bases, oxidizers, reducers
• Does it rust, tarnish or combust?
Atoms rearranging
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