Brønsted Lowry definition of an acid says that an acid gives away protons.
What I don't understand is what makes dissolved protons grant the property of acidity? Like, why would dissolved protons eat up materials?
My question applies to bases too, I suppose. And I guess you could include Lewis-acids and bases in your argumentation...
It's a question that has been bothering me for long. By the way I am not chemist(nor do I study chemistry).