How many significant figures are in each of the following measurements? A. 0.4004 mL. B. 6000 g. C. 1,000 30 km. & D. 400. mm

The rules of significant figures are: 1. all non zeros are significant. 2. trailing zeros are significant. 3. zeros between non-zeros are signifincant. Hence, applying these to the given.

A. 4 sig figs

B. 1 sig fig

C. 6 sig figs

D. 1 sig fig