chemistry

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For each of the following bonds, indicate the positive end with \delta^{+} and the negative end with \delta^{-}. Write an arrow to show the dipole for each.
1. Si-Cl
2. Se-F
3. Br-F
4. N-H
5. N-P

• chemistry - ,

I thought we went over this a couple of days ago. What's the problem?