What is Strong acid?
{{Acids and Bases}} In [[chemistry]], a '''strong acid''' is an [[acid]] which [[ionizes]] (splits) completely in a [[solution]] of [[water]]. It always loses a [[proton]] (A H<sub>+</sub>) when put in [[water]]. A [[weak acid]] does not always lose a proton, though; It can lose its proton, but not all the time. They also have a very low [[pH]], usually between 1 and 3. Many strong acids have a negative pKa value, which means they are very strong. The six common strong acids are: (Acronym:CBSPIN) # [[Hydrochloric acid|Hydro'''C'''hloric acid]] H'''C'''l # [[Hydrobromic acid|Hydro'''B'''romic acid]] H'''B'''r # [[Sulphuric acid|'''S'''ulfuric acid]] H₂'''S'''O₄ # [[Perchloric acid|'''P'''erchloric acid]] HClO<sub>4</sub> # [[Hydroiodic acid|Hydro'''I'''odic acid]] H'''I''' # [[Nitric acid|'''N'''itric acid]] HNO<sub>3</sub> Almost strong acids include: # [[Chloric acid]] HClO<sub>3</sub> {{chem-stub}} [[Category:Acids]]