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| the quantity of matter in an object |
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| the force of attraction between an object and other objects |
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| anything observed or measured about a sample of matter |
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depends on size of sample
.mass
.volume |
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independent of sample size
.density: color, Mp, reactivity |
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can be measured with out changing composition of sample
.Mass (e), Density(i), color melting point |
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| flammability, reactions, explosiveness, failure not to react with another chemical |
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| a material that is chemically the same throughout |
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| substance cannot be broken down into simpler substance by chemical means |
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| can be broken down into simpler substances |
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a combination of two or more substances that can be separated in the physical properties
.filtering |
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Composition change from one part to another
ex. mixture of salt and pepper |
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