Chem 1.4-1.5

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Last updated 4:31 AM on 8/20/26
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16 Terms

1
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What do measurements consist of?

They consist of size, units, and uncertainty

2
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Volume is:

V = (length) l³ + m³

3
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1 dm³ = ?

1 L

4
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1 cm³ = ?

1 mL

5
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Density formula is

D = m/v

SI Unit - kg/m³

6
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Exact Numbers are?

whole, countable, integers

7
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Inexact Numbers are?

measured values not integers

8
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Exact numbers have?

infinite sigfigs

9
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All non zero numbers are?

sigfigs

10
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captive zeroes are

sigfigs

11
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trailing zeroes are

sigfigs (but only if there is a decimal point)

12
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Leading zeroes are

not sigfigs

13
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Precise measurements

Values close to each other

14
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Accurate Measurements

values close to correct one

15
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Add/subtract rules

absolute precision

answer cannot have more digits to the right of the decimal point than any original numbers

16
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Multiplication/Division rules

relative precision

The number of sigfigs in the answer is limited to the factor with the least number of sigfigs