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Question
Convert 0.490 ng to milligrams and express the answer in scientific notation using the correct number of significant figures.
A.4.90 10-5 mg
B.4.90 10-7 mg
C.4.9 10-mg
D.0.490 10-8 mg
E.0.490 10-7 mg
Answer
This answer is hidden. It contains 2 characters.
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