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AP Chem Ch 1B Flashcards

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10290491181Accuracycorrectness; agreement of a measurement with the true value0
10290491182Precisionreproducibility; degree of agreement among several measurements.1
10290495633Random Errorequal probability of a measurement being high or low2
10290495634Systemic Erroroccurs in the same direction each time3
10290504171Non-zero digitsAlways significant4
10290506679Significant zeros- The zero in question is "terminating AND right" of the decimal [must be both] - The zero in question is "sandwiched" between two significant figures5
10290512428Sig Fig rule for multiplying and dividingthe term with the least number of significant figures determines the number of maximum number of significant figures in the answer.6
10290513869Sig Fig rule for adding and subtractingthe term with the least number of decimal places determines the number of significant figures in the final answer.7
10290524245Meniscusbottom of liquid curve where volume is read8
10290527755neither precise or accurate9
10290532772both precise and accurate10
10290532606precise but not accurate11
10290541388Leading zeros-zeros that precede all nonzero digits -do not count as significant12
10290548981Captive zeros- zeros between nonzero digits - always considered significant13
10290553116Trailing zeros- zeros at the right end of the number - significant only if number has a decimal14

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