When writing the results of an experimental observation in terms of significant digits, all non-zero digits are -----------------
A. significant
B. to be discarded
C. to be rounded off
D. to be truncated
1
Expert's answer
2015-11-06T00:00:47-0500
A. significant.
We have a rule: All nonzero digits are significant. Also when a calculation is performed, the number of significant figures in the numerical answer is determined by the precision of the measurements used in the calculation. It is often necessary to round off the calculated result to the proper number of significant figures. But we round off only one uncertain digit not all non-zero digits.
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
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