Question
B. Multiple Choice __ 11. How many significant figures are in the measurement 2103.2 g ? a. 2 C. 4 b. 3 d. 5 __ 12. Which of these equalities is not correct? a 100cg=1g C. 1cm^3=1mL b 1000mm=1m. d. 10kg=1g __ 13. How many of the zeros in the measurement 0.0000402200 m are significant? a. 2 C. 7 b. 3 d. 8 __ 14. How many milligrams are in 2.5 kg a 2.5times 10^6mg C 2.5times 10^-4mg b. 25 mg. d 2.5times 10^2mg
Answer
3.1
(241 Votes)
Elizabeth
Elite · Tutor for 8 years
Answer
11. d. 512. d.
13. b. 314. a.
Explanation
11. Significant figures are all the digits that contribute to the precision of a measurement. In 21032, all digits are significant.12. The equality
is incorrect because 10 kg equals 10,000 g.13. Leading zeros are not significant, but trailing zeros after a decimal point are. In 0.0000402200, only the last five zeros are significant.14. To convert kilograms to milligrams, multiply by
.