What causes a polar covalent bond to form?

Answer 1

A polar molecule is similar to a magnet, it has a positively charged side and a negatively charged side on the opposite side. When polar molecules are near each other, their positive sides are attracted to each other's negative sides, and vice-versa. This attraction is called a hydrogen bond.

Hydrogen bonds are weak, but they are strong enough to form water drops and puddles and to keep the 2 strands of a DNA molecule together.

Answer 2

A polar molecule forms there is a highly electronegative atom that bonds with less electronegative atoms. A net negative charge will gather on the electronegative atom, leaving a net positive charge on the opposite side of the molecule.

Answer 3

A polar covalent bond forms when two different atoms with different electronegativities share electrons unequally. The more electronegative atom attracts the shared electrons more strongly, creating a partial negative charge on that atom and a partial positive charge on the other atom.

Answer 4

A polar covalent bond is formed when 2 atoms are sharing the same electron unequally.

It occurs because one of the atoms has a stronger affinity for electrons that the other.

Answer 5

Either hydrogen bond or Dipole-Dipole interaction

Answer 6

Polar bonds potentially make a molecule polar. However if the molecule has symmetry that allows the bond moments to cancel out, as in CCl4 which is non-polar.

Answer 7

Polar bonds are formed when the difference between the electronegativities of two elements is significant.

Answer 8

They form when the electronegativy difference between the anion and cation is between 0.4 and 1.7.

Answer 9

opposite electric charge