question on acid

[Jerryt12]

A strong acid is a substance that contains high concentration of hydronium ion, basically high concentration of hydrogen. But why are acid so reactive( or dangerous)? Is it because the intermolecular forces between the atoms of the acid are weak?

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Let me re-phase the last sentence. Is it because the intermolecular forces between the atoms of the acid are weak so they are very reactive?

[Mr Skeptic]

It's actually the hydronium that is so reactive, as an oxidizing agent. A few (Lewis) acids don't generate H+, but the acids themselves are still powerful oxidizing agents.