What's the difference between an Arrhenius acid and a Bronsted-Lowry acid?

[Joshua Mitchell]

They both produce H+ right? How do I tell the difference in a reaction?

 

[Borek]

How come dissolving FeCl₃ produces an acidic solution?

 

[jim mcnamara]

Try this for a much longer discussion: http://www.chemguide.co.uk/physical/acidbaseeqia/theories.html

You can look at Bronstead-Lowry as an extension (or complement) to Arrhenius - it handles situations like the one Borek mentioned that Arrhenius does not explicitly cover.