1 Properties of matter 2 What are properties? Characteristics used to describe an object Ex: Odor density Shapesoftness size taste Texture smell Hardnessreactivity.

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Presentation transcript:

1 Properties of matter

2 What are properties? Characteristics used to describe an object Ex: Odor density Shapesoftness size taste Texture smell Hardnessreactivity Flammabilityexplosive

Melting point Boiling point Vapor pressure Color State of matter Phase Texture Density Electrical conductivity Solubility Adsorption to a surface Hardness Shape Hardness Physical Properties

4 What is a physical change? Physical changes involve the changing of physical properties Type of matter remains the same

The physical properties of sodium metal can be observed or measured. It is a soft, lustrous, silver-colored metal with a relatively low melting point and low density. Hardness, color, melting point and density are all physical properties.

Chemical properties describe how a substance change into another substance. For Example, Flammability

Reaction with acids Reaction with bases (alkalis) Reaction with oxygen (combustion) Reaction with other elements Decomposition into simpler substances Corrosion

8 Chemical Changes The change of a substance into a new and different substance Also known as a chemical reaction