Stack #51596
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| element | a pure substance made of only one kind of atom (ex. oxygen)
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| compound | a substance that is made from the atoms of two or more elements that are chemically bonded (ex. water)
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| homogeneous mixture | a mixture that all blends together, is uniform (is a solution, salt water)
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| heterogeneous mixture | a mixture that does not blend together, (ex. dirt)
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| physical property | a propertyt that can be observed without changing the element (ex. boiling point)
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| chemical property | the ability of a substance to undergo a change that transforms it into a differfent substance (ex. solubility)
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| rules of significant digits | Zeroes placed before other digits are not significant, Zeroes placed between other digits are always significant, Zeroes placed after other digits but behind a decimal point are significant, Zeroes at the end of a number are significant only if they are
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| accurate | Accuracy is the degree of veracity while precision is the degree of reproducibility
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| percise | ability to be reproduced
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| percent error | 100- error or theo-yield/theoretical
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| percent yield | yield/actual
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Created by:
lilee256