10. How many nanogram are there in a mass of 2
exagram?
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2
Answer:
not know
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Answered by
3
Answer:
1 exagram = 10¹⁸g =10¹⁸× 10 -⁹/10-⁹ g
=10²⁷ × 10-⁹g
= 10²⁷ng
Explanation:
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