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Which formula represents an asymmetrical molecule?

August 2018 NY Regents Chemistry Exam


11 Which formula represents an asymmetrical molecule? (1) CH4

(2) CO2

(3) N2

(4) NH3


Solution: In order for us to do this problem, we need to show Lewis dot structures for all the molecules or memorize the most popular molecules on the Regents Chemistry Exam. CH4 and CO2 are symmetrical nonpolar molecules while NH3 and H2O are asymmetrical polar molecules.

Answer: 4


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