Chemistry

2. Which bond is polar covalent?
a) H2
b) Cl2
c) HCl
d) O2

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asked by Lisa
  1. Which bond is between unlike atoms?

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    posted by DrBob222
  2. HCL ?

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    posted by Carlos
  3. And HCl it is. Note that the bonds between O2, H2, Cl2 are between the SAME atoms; therefore, there is NO difference in electronegativity and they are 100% covalent (except it is argued by some that we can write resonance structures that contain charges and that contributes to a tiny, tiny amount of polarity but it is essentially zero (if it exists).

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    posted by DrBob222

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