An atom of carbon (C) forms covalent bonds with two atoms of oxygen (O) to form carbon dioxide. How are the valence electrons of these atoms rearranged to form the bonds? Electrons are transferred from the carbon atom to the oxygen atoms.
Electrons are transferred from the oxygen atoms to the carbon atoms.
Many valence electrons are shared between the atoms.
A few valence electrons are shared between the atoms.

Many valence electrons are shared between the atoms.

Explanation:

For the atoms to form a covalent bond, a many of the valence electrons are shared between the atoms.

When a covalent bond is to be formed, the valence electrons which are the outermost electrons are shared between the atoms that are combining.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

it would be a gas formation