Question

part 1
where will the shared electrons in the covalent bond spend more time?
o closer to oxygen
o shared equally between carbon and oxygen
o closer to carbon
part 2
will there be partial charges on the atoms in the covalent bond?
o yes. oxygen will have a partial positive charge and carbon will have a partial negative charge.
o no. neither atom will have a partial charge.
o yes. oxygen will have a partial negative charge and carbon will have a partial positive charge.
part 3
is this covalent bond polar or nonpolar?
o nonpolar, because the electrons are shared unequally.
o polar, because the electrons are shared equally.
o nonpolar, because the electrons are shared equally.
o polar, because the electrons are shared unequally.

Explanation:

• Part 1: Oxygen has a higher electronegativity than carbon. In a covalent bond between carbon and oxygen, electrons are attracted more strongly to the more electronegative atom (oxygen).
• Part 2: Due to the unequal sharing of electrons (oxygen is more electronegative), oxygen will have a partial negative charge (as it attracts electrons more) and carbon will have a partial positive charge.
• Part 3: A polar covalent bond is one where electrons are shared unequally. Since oxygen and carbon have different electronegativities and electrons are shared unequally between them, the bond is polar.

Answer:

• Part 1: closer to oxygen
• Part 2: Yes. Oxygen will have a partial negative charge and carbon will have a partial positive charge.
• Part 3: Polar, because the electrons are shared unequally.