Apentix/AP Chemistry/Unit 2: Molecular and Ionic Compound Structure and Properties/Question
AP Chemistrymediummcq1 pt

Which of these statements about formal charge is true?

A.The sum of formal charges equals the overall charge
B.Formal charge equals oxidation number
C.Formal charge is measured experimentally
D.Formal charge is always zero in the best structure

Explanation

Core Concept

Formal charge is a bookkeeping tool; totaled over a molecule it gives 0, and over an ion it gives the ion's charge. It also guides which Lewis structure is most plausible.

Correct Answer

AThe sum of formal charges equals the overall charge

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