No. They reason it is polar is because one side is slightly positive and the other slightly negative. For this to happen, there needs to be unequal sharing of electrons. One atom will have a higher electronegativity than the other, and will naturally "keep" the electrons longer. So that atom will be slightly negative for having held onto the electron, creating a polar bond.
No the hydrogen and oxygen atoms do not equally share their electrons. The oxygen atom has a greater electronegativity than the hydrogen atom, which means that the oxygen atom has a greater attraction for electrons than the hydrogen atom.
No, this is the situation for covalent bonds.
covalent bonds
If the atoms in a covalent bond share electrons equally, the bond is nonpolar.
equally
Covalent bonding occurs when atoms share two or more electrons. Electrons are shared in pairs.
covalent bonds
Electronegativity is the attraction of an atom for the shared pairs of electrons.
a carbon atom can share electrons with up to four other atoms.
If the atoms in a covalent bond share electrons equally, the bond is nonpolar.
equally
polar
Two atoms sharing three pairs of electrons have a triple bond.
In a polar covalent bond the atoms do not share the electrons equally, whereas in a nonpolar covalent bond the atoms do share the electrons equally.
Covalent bonding occurs when atoms share two or more electrons. Electrons are shared in pairs.
equally
yeap!
covalent bonds
They share two pairs of electrons and have 2 lone pairs
they blow upinto 1 billion peices and kill everyone