Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of the book is paired with a similar one that is not.
How many significant figures are present in these measured quantities?
(a) 1.022 × 102 km
(b) 34 m2
(c) 0.042 L
(d) 28.2 °C
(e) 323. mg
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