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5.2 What are Physical Properties?. Physical Properties. Physical properties include:. appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others. The three states of matter are: solid, liquid, and gas.
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Physical properties include: • appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others. • The three states of matter are: solid, liquid, and gas. • The melting point and boiling point are related to changes of the state of matter. All matter may exist in any of three physical states of matter. • Solubility: how well something is able to dissolve
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 • Density=Mass/volume • Can be used to test the purity of a substance because all matter has a unique density
5.3 Chemical Properties How Substances Change
Chemical Properties • Ability to produce a change in the composition of matter • Can be observed only as the matter is changing
Combustibility (Flammability) • Material’s ability to burn in the presence of oxygen
Reactivity • How readily a substance combines chemically with other substances
Production of a Precipitate • When two solutions are mixed together and a insoluble solid is created.
What are some differences between chemical & physical properties?
What properties (physical or chemical) are helpful in identifying a substance?