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| observed without making / changing the chemical makeup of a substance (physical change) |
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| describes a chemical change (Chem. Rxn.) that a substance undergoes |
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| a property that depends on sample size. (volume, mass) |
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| properties that are independent of sample size. (color electrical conductivity, melting point, etc.) |
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| changes in color and physical state. |
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| Refers to reproducibility or how close the measurements are to each other |
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| Refers to how close a measurement is to the real value. |
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| Values that are either all higher or all lower than the actual value. |
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| In the absence of systematic error, some values that are higher and some that are lower than the actual value. |
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