Question

respond to all 3
what makes a bond polar? what makes a molecule polar? what should we look for to determine if a molecule will be polar?

what makes a bond polar is a difference in electronegativity between the bonded atoms. what makes a molecule polar is polar bonds and a molecular geometry where bond dipoles do not cancel. electronegativity differences molecular geometry
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Explanation:

A bond is polar due to a difference in electronegativity between bonded atoms. A molecule is polar when it has polar bonds and a molecular geometry where bond dipoles don't cancel out. To determine molecular polarity, check for electronegativity differences and molecular geometry.

Answer:

What makes a bond polar: A difference in electronegativity between the bonded atoms.
What makes a molecule polar: Polar bonds and a molecular geometry where bond dipoles do not cancel.
What to look for to determine if a molecule will be polar: Electronegativity differences and molecular geometry.