physical and chemical properties. what are properties? matter has observable and measurable...

Physical and Chemical Properties

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Physical and Chemical Properties

What are properties?• Matter has observable and measurable

qualities.• We can use general properties to identify

substances.• Two basic types of properties of matter:

Physical properties and Chemical properties:

Page 3: Physical and Chemical Properties. What are properties? Matter has observable and measurable qualities. We can use general properties to identify substances

Physical Properties

• Physical properties are used to identify, describe and classify matter.

– Characteristic of a substance that can be observed (using your senses) without changing the substance into something else.Hardness Texture Color

Odor Taste Temperature

Page 4: Physical and Chemical Properties. What are properties? Matter has observable and measurable qualities. We can use general properties to identify substances

More EXAMPLES - Physical

• size, shape, freezing point, boiling point, melting point, magnetism, viscosity, density, luster and many more.– Viscosity - The resistance of a liquid to

flowing.– Examples:– Low viscosity-water, rubbing alcohol– High viscosity-honey

Chemical Properties

• Chemical properties are characteristics involved when a substance interacts with another substance to change its chemical make-up.

Flammability Rusting Creating gas bubbles

Creating a new chemical

product

Reactivity with water

http://www.astm.org/SNEWS/DECEMBER_2004/images/tn_flammability.gif

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