An ==Key Stage 3=====Meaning===[[Nitric Acid]] is an [[acid]] made from 1 [[nitrogenNitrogen]], 1 [[hydrogenHydrogen]] and 3 [[oxygenOxygen]] [[Atom|atoms]] with the [[Chemical Forumula|chemical formula]] HNO<sub>3</sub>. ===About Nitric Acid===: [[Nitric Acid]] is an [[Oxidising Agent]] used in [[rocket]] [[fuel]]s.: [[Nitric Acid]] with a [[concentration]] between 0.1[[M]] and 0.5[[M]] is an [[irritant]].: [[Nitric Acid]] with a [[concentration]] above 0.5[[M]] is [[corrosive]].