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Draw the electron dot structures for each molecule. Identify polar covalent bonds by assigning slightly positive and slightly negative symbols to the appropriate atoms.

AHOOH
BBrCl
CHBr
DH2O

Verified Answer :

The electron dot structure for each molecule are:
        ..  ..
a. H:O:O:H
        ..  ..
The partial negative charges are on the Oxygen atoms.

        ..
b. H:Cl:
        ..
The partial negative charge is on the Chlorine atom.

        ..
c. H:Br:
       .. 
The partial negative sign is on Bromine atom.

        ..
d. H:O:H
        ..
The partial negative sign is on the Oxygen atom.