Properties and Changes of Matter

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Presentation transcript:

Properties and Changes of Matter

Properties of Matter Physical Properties: Chemical Properties: Can be observed without changing a substance into another substance. Boiling point, density, mass, volume, etc. Chemical Properties: Can only be observed when a substance is changed into another substance. Flammability, corrosiveness, reactivity with acid, etc.

Properties of Matter Intensive Properties: Extensive Properties: Independent of the amount of the substance that is present. Density, boiling point, color, etc. Extensive Properties: Dependent upon the amount of the substance present. Mass, volume, energy, etc.

Changes of Matter Physical Changes: Chemical Changes: Changes in matter that do not change the composition of a substance. Changes of state, temperature, volume, etc. Chemical Changes: Changes that result in new substances. Combustion, oxidation, decomposition, etc.

Chemical Reactions In the course of a chemical reaction, the reacting substances are converted to new substances.