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22-12-2020
Chemistry

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Which formula represents a polar molecule? 1. O2 2. CO2 3. NH3 4. CH4

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22-12-2020

Answer:

NH3.

Explanation:

You can draw Lewis diagrams to answer this question and what distinguishes a polar from a nonpolar molecule: A nonpolar molecule must be symmetric and have no lone pairs on its central atom. The only one that fits the criteria necessary to be a polar molecule is NH3.

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