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Physical vs. Chemical Properties. Physical Property. Any property that can be observed without changing the composition of the substance. 5 Senses. Sight Smell Taste Touch Hearing. Viscosity. Tendency of a fluid to keep from flowing
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Physical Property • Any property that can be observed without changing the compositionof the substance
5 Senses • Sight • Smell • Taste • Touch • Hearing
Viscosity • Tendency of a fluid to keep from flowing • The greater the viscosity, the slower the liquid moves
Conductivity • Material’s ability to allow heat or electricity to flow
Malleability • Ability of a material to be shaped or hammered without breaking
Hardness • Ability of a material to be scratched
Melting & Boiling Points • Each substance has their own • Can be used to identify a substance
Density • Mass/volume • Can be used to test the purity of a substance
Chemical Properties • Ability to produce a change in the composition of matter • Can be observed only as the matter is changing
Flammability • Material’s ability to burn in the presence of oxygen
Reactivity • How readily a substance combines chemically with other substances
What are some differences between chemical & physical properties?
What properties (physical or chemical) are helpful in identifying a substance?