Chem UNIT 1 REVIEW!!

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Last updated 3:00 PM on 10/2/26
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14 Terms

1
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FORMULA FOR PERCENT ERROR (accuracy)

|Known Value - Lab Value/Known Value| x 100

2
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FORMULA FOR LOP

(Smallest Increment/10)

3
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ALL NONZERO DIGITS ARE… (sig/notsig)

significant

4
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SANDWICH 0’S ARE… (sig/notsig)

significant

5
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(DECIMAL) ALL ZEROES TO THE RIGHT OF NON-ZERO DIGITS ARE… (sig/notsig)

significant

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(DECIMAL) ALL ZEROES TO THE LEFT OF NON-ZERO DIGITS ARE… (sig/notsig)

not significant

7
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(NO DECIMAL) ALL ZEROES TO THE RIGHT OF NONZERO DIGITS (sig/notsig)

not significant

8
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COUNTED AND DEFINED VALUES

INFINITE SIGFIGS!!

9
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division and multiplication rounding rules:

Final Answer should be rounded to the # of SFS as the value with the least # of SFS

10
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Addition and Subtraction rounding rules:

Final Answer should be rounded to the same place value as the # with the least accurate place value.

11
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CaCO³

Pure Sub, Compound, Molecule.

12
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Mg

Element, Pure Substance

13
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Fe & Pb

Mixture of Elements

14
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The formula for range (precision)

Highest Value - Lowest Value