There are seven common strong acids. Many people choose to memorize them because all other acids are considered weak. These seven acids are:
- Hydrochloric acid (HCl)
- Nitric acid (HNO3)
- Sulfuric acid (H2SO4)
- Hydrobromic acid (HBr)
- Hydroiodic acid (HI)
- Perchloric acid (HClO4)
- Chloric acid (HClO3)
