Please check the following.

1. What is the empirical formula of the compound C6O6H14?

A. C3O3H7
B. CO2H
C. C12O12H28
D. COH2

My answer: A.C3O3H7

2. The diameter of an atom is approximately 1x10^-10 meter. What is the diameter in millimeters?

A. 1 x10^-12 mm
B. 1 x10^-13 mm
C. 1 x10^-4 mm
D. 1 x10^-7 mm

My answer: D. 1x10^-7 mm