Acids breaking things down

[405509920]

I'm curious as to the actual chemical mechanisms through which acids break molecules down.

[905783577]

Acids are proton or H+ donors, so they typically "donate" an H+ to form H20 in a solution.

[Kaya L]

Adding on to that, when H+ is being handed out everywhere to the molecules in the vicinity, it changes the chemical properties of the molecules around it, aka breaking down those molecules.