Problem: Classify each of the following as a Lewis acid or a Lewis base.H-, I-Fe3+NO2SnCl4CH3OH(CH3)3N

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Lewis acid is an electron pair acceptor:

When hydrogen is connected to an electronegative element such as P, O, N, S or halogens

Positively charged metal ions

Central element that has less than 8 valence electrons around it

Lewis base is an electron pair donor:

Compounds that have lone pair(s) on a central element can act as Lewis bases.
Compounds that possess a negative charge can act as Lewis Bases. 

H → negatively charged → Lewis base

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Problem Details

Classify each of the following as a Lewis acid or a Lewis base.

H-, I-






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