003-Matter And Measurement

003-Matter And Measurement - L3: Matter and Measurements -...

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L3: Matter and Measurements - Organization of matter - Accuracy and precision - Significant figures Laboratory instruments used by Lavoisier circa 1780s
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The Three States of Water Animation: http://michele.usc.edu/105a/atoms/nacl.html
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The Organization of Matter Animation: http://michele.usc.edu/105a/atoms/pure.html
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Element: Element: A substance that cannot be A substance that cannot be decomposed into simpler substances by decomposed into simpler substances by chemical means. chemical means. Compound: Compound: A substance with a A substance with a constant composition that can be constant composition that can be broken down into elements by chemical broken down into elements by chemical processes processes . . Types of pure substances
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Properties of matter and change Physical: can be measured without causing the substance to lose its identify Chemical: changes the nature of the substance Physical change: process in which a substance changes its appearance but not its basic nature Chemical Change: a change that does change the nature of the substance
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003-Matter And Measurement - L3: Matter and Measurements -...

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