volume_mute
Spot the Correct Metric Equalities
publish date: 1969/12/31 00:00:00 UTC
volume_mute
Select every statement below that is a correct metric equality.
Correct Answer
(1) 1 km = 10⁹ µm
(2) 1 cL = 10⁻⁸ ML
(3) 1 mg = 10⁻⁶ kg
Explanation
1 km = 10³ m = 10⁹ µm. 1 cL = 10⁻² L and 1 ML = 10⁶ L, so 1 cL = 10⁻⁸ ML. 1 mg = 10⁻³ g = 10⁻⁶ kg. The Ms-to-ns statement is wrong: 1 Ms = 10⁶ s = 10¹⁵ ns, not 10⁹. The last km statement is also wrong (it should be 10⁹ µm).
Reference
Beginning Chemistry v. 1.0