Are covalent bonds between compounds always polar?

Question

I ask the question because the atoms have to have the same electronegativity and compounds are made of two or more different atoms.

Answer 1

No, sometimes they are bi-polar, in which case, you will have wild mood swings from the outer electron shell to the neucleus, requiring large infusions of prozac to stabilize the compound.

Answer 2

No...sometimes they are bipolar.

Answer 3

No. Polarity in covalent bonds will depend on that the other atom is.

The greater the electronegativity between them the more polar it will be.

C-C has has not electronegativity so it is not polar.

C=O has a greater electrongativity between them so it is more polar than the C-C bond.

Answer 4

Only on the second Tuesday of every week,

Answer 5

covalent bonds between compounds are only polar when one or more elements in the compound are more electronegative than the others. covalent bonds between compounds can be nonpolar as in the case with H2 (hydrogen gas) which is H - H. Since they are the same element and have the same electronegativity, their electrons are shared between eachother equally and the molecule is nonpolar. Also the compound SO3 (sulfur trioxide) is nonpolar because if you draw out the lewis model with all 24 valence electrons (6 from sulfur, 18 from oxygen) you would see that the molecule would have a trigonal planar geometry with no lone electron pairs according to the VSEPR theory. Since it is all symmetrical, SO3 is also nonpolar.

Answer 6

No.  Covalent bonds between two atoms with 'like' electronegativities are non-polar.  For example, C-C bonds have an electronegativity difference of 0 (They're the same atoms, so the electronegativities are the same), and are thus non-polar.