In a double covalent bond, a carbon atom shares
a_electrons in two of its shells.
b_both valence and non-valence electrons.
c_two electrons.
d_electrons in two orbitals.
e_none of the above.

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters