chem quiz 1

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7 Terms

1
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rule for precision while measuring

estimate one digit

2
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multiplying/dividing measurements

answer must contain same amt of sig figs as the number with the smallest amt of sig figs

3
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adding/subtracting measurements

answer must contain same amt of decimal places as the number with the smallest amt of decimal places

4
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integers in sig figs

all count as sig figs

5
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captive zeros in sig figs

zeros between integers, always count as sig figs

6
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trailing zeros in sig figs

zeros that come at the end of a number, only count if there is a decimal pt

7
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exact numbers in sig figs

exact numbers (rather than measurements have an infinite number of sig figs