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Bronsted acids are more specific than Lewis acids. Bronsted acids are compounds that can donate a proton, where Lewis acids are electron pair acceptors. So all Bronsted acids are Lewis acids, but not all Lewis acids are Bronsted acids.
A Bronsted acid is a proton (H+) donor and a Bronsted base is a proton acceptor. A Lewis acid is an electron acceptor while a Lewis base is an electron donor. Because the Bronsted definitions restricts acids to be H+ donors, ions like Al 3+ (which are Lewis acids since they can accept electrons) are not necessarily considered to be an acid based on the Bronsted definition. The Lewis definition as a result is more inclusive compared to the Bronsted definition.
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