Perform the following metric conversions, keeping the same number of significant digits.
1. 12 cm = __________________ m
2. 4.51 x 10−7 cm = ____________ m
3. 37.1 mL =_________________L
4. 5.94 kg = _________________ g
5. 24.3 ns = _________________ s
6. 1230 g = __________________ kg
7. 74.6 mol = ________________ mmol
8. 0.821 L = _________________ mL
9. 3.746 kmol = ______________ mol