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At STP, propanal and propanone have different chemical properties due to their different

NY Regents Chemistry Exam June 2022


44 At STP, propanal and propanone have different chemical properties due to their different (1) molecular masses (2) empirical formulas

(3) percent compositions

(4) functional groups


Explanation: Both propanal and propane are organic molecules. Each one has a different ending in their names, signifying a different functional group. According to Table R on the Reference Table, propanal is an aldehyde while propanone is a ketone.

Answer: 4

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